2006 Washington State Quarter Errors: Value Guide & Rare Varieties
Complete 2006 State Quarter error guide. Missing clad layers worth $300–$3,760+, Colorado Cuds, Doubled Ear varieties, and the Nevada Pooping Horse. Values updated January 2026.
Most 2006 State Quarters are worth face value, but confirmed mint errors can reach $3,760—weigh your coin before anything else.
- 💰 Missing Clad Layer (copper face, weighs ~4.70g): $300–$3,760+
- 💰 Colorado Cud (raised rim blob on reverse): $50–$150+
- 💰 Doubled Ear — ND/NE/SD P-mint (secondary earlobe under magnification): $5–$25
- 🐴 Nevada "Pooping Horse" die chip: usually $1–$10 despite the hype
⚠️ Biggest traps: flat, shelf-like doubling on the date is worthless Machine Doubling; grainy Satin Finish coins from 2006 Mint Sets are not errors.
2006 Washington State Quarter Errors Error Checker
Check your coin for valuable errors and varieties
Values shown are typical retail estimates as of 2026-01.
Error coin values vary significantly based on grade, eye appeal, state variety, and current market conditions.
Professional authentication (PCGS/NGC/ANACS) is strongly recommended for suspected high-value errors such as missing clad layers and major cuds.
Machine Doubling (flat, shelf-like doubling) is NOT a valuable doubled die variety and carries no numismatic premium.
Satin Finish coins from 2006 Uncirculated Mint Sets are not errors—they are standard Mint Set issue worth approximately $1–$3 raw.
Die chips such as the Nevada 'Pooping Horse' are minor novelties typically worth $1–$10, not major rarities despite social media hype.
The 2006 series includes five state designs (NV, NE, CO, ND, SD). Error availability and value may differ by state.
In 2006, the U.S. Mint produced over 2.9 billion State Quarters across five designs—Nevada, Nebraska, Colorado, North Dakota, and South Dakota. Hiding among those billions are genuine mint errors: one missing-clad-layer North Dakota quarter sold at auction for $3,760. This guide shows you exactly what to look for, how to test it, and when a coin is worth submitting for professional grading. See standard 2006 quarter values here →
2006 State Quarter Specifications & Mintage
All 2006 Washington State Quarters—regardless of design—share the same physical specifications. Any deviation in weight is your first alert that a coin may be a major error. The 2006 series is also notable for including Satin Finish coins in annual Mint Sets, creating a third surface type that is often mistaken for errors.
| Specification | Standard Clad (P/D) | Silver Proof (S) |
|---|---|---|
| Composition | Cu-Ni Clad (8.33% Ni outer layers) | 90% Silver / 10% Cu |
| Weight (normal) | 5.67g | 6.25g |
| Weight (missing clad) | ~4.70g ← error threshold | N/A |
| Diameter | 24.3 mm | 24.3 mm |
| Available Mints | P & D (Business Strike + Satin Finish) | S only |
Mintage by State
- Nevada: 277M (P) + 312.8M (D) = 589.8M business strikes
- Nebraska: 318M (P) + 276.4M (D) = 594.4M business strikes
- Colorado: 274.8M (P) + 294.2M (D) = 569M business strikes
- North Dakota: 305.8M (P) + 359M (D) = 664.8M business strikes
- South Dakota: 245M (P) + 265.8M (D) = 510.8M business strikes
- S-mint Clad Proof (each state): 2,882,428
- S-mint Silver Proof (each state): 1,585,008
- Satin Finish Mint Set (P+D, all states): ~847,361 per state pair
⚠️ The Weight Test Is Non-Negotiable
A digital scale accurate to 0.01g is your most important tool for 2006 error hunting. A normal clad quarter is 5.67g. A missing clad layer error is ~4.70g. Any coin that looks copper but weighs 5.67g is environmental damage—not an error worth grading.
Digital scale showing 4.70g (missing clad) vs. 5.67g (normal quarter).
For standard circulation values without errors, see our complete 2006 quarter value guide.
2006 State Quarter Quick Checks: Do You Have Something Valuable?
Run through these checks in order. Stop as soon as one matches your coin—then jump to the full analysis in the Jackpots section below.
Check 1 — Missing Clad Layer (Major Mint Error)
Both faces of the coin. Also inspect the edge for a missing outer layer.
One side appears unmistakably copper-red (the exposed core), while the other retains normal nickel-silver color. Strike details must be sharp—not worn away. The coin MUST weigh ~4.70g on a digital scale.
Environmental damage (dark brown, porous, corroded, but full 5.67g weight). Painted or gold-plated coins. Edge damage that merely exposes a sliver of copper. Weight is the definitive test—no exceptions.
Check 2 — Colorado Cud (P-Mint Only)
The rim on the reverse (back) of Colorado quarters, near the mountains or rim lettering. Applies to P-mint only.
A raised, blobby, featureless lump of metal fused to the rim that extends inward and obliterates part of the design. This is called a "Cud"—a void in the die filled with metal during striking.
A rim ding or dented edge from being dropped or struck by another coin (Post-Mint Damage). True cuds have extra raised metal; damage shows displaced or missing metal.
Check 3 — Doubled Ear Variety (North Dakota, Nebraska, or South Dakota — P-Mint Only)
Washington's earlobe on the obverse (front) of P-mint North Dakota, Nebraska, and South Dakota quarters. Use a 10x loupe.
A distinct secondary earlobe outline below the primary ear. This is "Class VIII Tilted Hub" doubling—the secondary image is offset downward with a clear notched separation, not just a smear.
Machine Doubling (flat, shelf-like smearing on the ear area). Die deterioration (mushy, indistinct ear). These two look-alikes carry zero numismatic premium.
Check 4 — Nevada "Pooping Horse" Die Chip (Minor)
Between the rear legs of the horse on the Nevada reverse design.
A small, raised, irregular bump of metal between the horse's rear legs that is part of the struck surface (not a scratch or gouge). Larger chips (>2mm) are worth more.
Dirt, glue residue, or a gouge from Post-Mint Damage. Also note: despite social media hype, real-world values are modest. Do not overpay for this.
Trap Check 1 — Machine Doubling (NOT Valuable)
The date, LIBERTY, and IN GOD WE TRUST lettering on the obverse.
Flat, stepped, shelf-like doubling on the sides of letters and numbers. The letters look "smeared" or "stepped" sideways.
Machine Doubling (MD) occurs when the die slips slightly during retraction after striking—it is a mechanical artifact, not a die variety. True valuable doubled dies show raised, rounded secondary images with "split serifs" (notches at letter corners). MD is flat and cuts into the letter sides.
Trap Check 2 — Satin Finish (NOT an Error)
Overall coin surface. Satin Finish coins have a uniform, grainy, sandblasted appearance across the entire surface—no "cartwheel" luster.
A matte-like, non-reflective surface that looks different from normal shiny coins. Sellers often list these as "rare matte proof" or "special strike."
Satin Finish is the standard surface type for 2006 P and D quarters included in Uncirculated Mint Sets. They are not errors, not rare, and not matte proofs. Raw value is roughly $1–$3. Do not pay error premiums.
2006 State Quarter Values & Error Reference Table
State Value Reference (Business Strikes)
These are baseline values for normal coins. If your coin has a confirmed error from the checks above, see the error table below.
| State | P Mintage | D Mintage | Circulated | Unc (MS65) | Top Error to Check |
|---|---|---|---|---|---|
| Nevada | 277M | 312.8M | $0.25 | $1–$5 | Pooping Horse die chip |
| Nebraska | 318M | 276.4M | $0.25 | $1–$5 | WDDO-001 Doubled Ear |
| Colorado | 274.8M | 294.2M | $0.25 | $1–$5 | Cud rim die break (P) |
| North Dakota | 305.8M | 359M | $0.25 | $1–$5 | Missing Clad Layer — $3,760 record! |
| South Dakota | 245M | 265.8M | $0.25 | $1–$5 | WDDO-001 Doubled Ear |
| All States (Satin Finish) | ~847,361 per state pair | N/A | $1–$3 | Not an error — standard Mint Set issue | |
| S Clad Proof (each state) | 2,882,428 | $1+ | $10+ | Collectible; common from Proof Sets | |
| S Silver Proof (each state) | 1,585,008 | ~$6+ (melt floor) | $15–$30 | 90% silver — minimum melt value | |
2006 State Quarter Error Master Table
| Error Type | Category | State / Mint | Rarity | Value Range | Auction Record |
|---|---|---|---|---|---|
| Missing Clad Layer | Planchet Error | ND, CO (Any) | Rare | $300–$3,700+ | ~$3,760 (MS68) |
| Wrong Planchet | Planchet Error | All | Unique/Rare | $1,000+ | Varies |
| Colorado Cud (Rim Die Break) | Die Break | CO (P) | Scarce | $50–$150+ | ~$156 (MS64) |
| Off-Center Strike | Striking Error | All | Scarce | $5–$300+ | ~$336 (70% O/C) |
| Doubled Ear WDDO-001 (ND) | Die Variety | ND (P) | Scarce | $5–$25 | — |
| Doubled Ear WDDO-001 (NE) | Die Variety | NE (P) | Scarce | $5–$25 | — |
| Doubled Ear WDDO-001 (SD) | Die Variety | SD (P) | Scarce | $5–$25 | — |
| Pooping Horse Die Chip | Die Chip | NV (P/D) | Common | $1–$10 | Nominal |
| Struck Through Grease | Striking Error | All | Common | $1–$20 | Varies |
| Minor Die Chip / Crack | Die Break | All | Common | $1–$5 | Nominal |
2006 State Quarter Jackpots: Valuable Errors Explained
2006 Missing Clad Layer Quarter
Normal clad quarter (left) vs. missing-clad-layer quarter showing full copper obverse (right).
Origin & Background
The standard clad quarter is a sandwich: a pure copper core pressed between two nickel-copper outer layers. During manufacturing, the strip is occasionally rolled without one layer adhering—when that blank is struck, one side of the finished coin shows the raw copper core. The 2006-D North Dakota quarter holds the confirmed auction record for this error type at $3,760 in PCGS MS68, making it the premier error to hunt across the entire 2006 series.
How to Identify
- One face is unmistakably copper-red with full luster; the other is standard nickel-silver.
- Strike details are sharp and clear—the coin was struck without the layer, not stripped afterward.
- Weight on a digital scale: ~4.70g (versus normal 5.67g). This is the definitive test.
- Inspect the edge: you may see only one outer layer visible in cross-section.
False Positives to Avoid
Environmental damage produces a dark brown or black coin that is porous and dull—but it weighs the full 5.67g. Painted or gold-plated coins often weigh slightly more than 5.67g. Edge damage that merely exposes a sliver of the copper core is not this error. If it weighs 5.67g, it is not a missing clad layer—full stop.
Market Values
- ✦ Genuine error (~4.70g, sharp strike): $300–$3,000+
- ✦ Environmental damage (5.67g, brown/porous): Face value ($0.25)
- ✦ Painted/plated (5.70g+, shiny copper look): Face value ($0.25)
Auction Record
~$3,760 for a 2006-D North Dakota, MS68 (PCGS CoinFacts). Do not clean or alter suspected examples before authentication.
2006-P Colorado Major Cud (Rim Die Break)
Colorado reverse rim showing the raised metal cud obliterating design near the mountains.
Origin & Background
A "Cud" is a specific type of die break where a chunk of die steel breaks away from the rim. The void that remains fills with metal during each subsequent strike, producing a raised, featureless blob fused to the rim of every coin struck by that die. The 2006-P Colorado quarter has a known cud on the reverse, obliterating part of the mountains or rim lettering depending on its position.
How to Identify
- Look for a raised, amorphous blob of metal connected to the rim on the Colorado reverse.
- The blob extends inward from the rim, obliterating part of the original design.
- The raised area is featureless—no lettering or design detail within it.
- Compare against known Cuds-on-Coins listings for confirmed die positions.
False Positives to Avoid
Rim dings from the coin being dropped or struck by another coin look similar at first glance, but are fundamentally different. Damage involves displaced or missing metal—the rim is dented inward or sideways. A true cud involves extra raised metal. Run your fingernail across the area: a cud is raised above the field; a rim ding is depressed or level.
Market Values & Auction Record
Value is approximately $50–$150+ depending on the size of the cud and the coin's grade. Auction record: ~$156 for a MS64 example.
2006-P Doubled Ear Varieties — North Dakota, Nebraska & South Dakota (WDDO-001)
Left: Normal earlobe. Right: WDDO-001 showing distinct secondary earlobe outline below the primary.
Origin & Background
Wexler's Doubled Dies (WDDO-001) is documented for three 2006 P-mint state designs: North Dakota, Nebraska, and South Dakota. All three share the same mechanism: the "single-squeeze" hubbing process used in this era frequently produced Class VIII (Tilted Hub) doubling, where the hub tilts very slightly between squeezes. The result is a secondary image that is offset rather than purely spread or rotated. The diagnostic area on all three is Washington's earlobe.
How to Identify
- Under 10x magnification, look at Washington's earlobe on the obverse.
- A genuine doubled die shows a distinct secondary earlobe outline below the primary ear.
- The secondary image should appear raised and rounded with notched separation between primary and secondary ear.
- Reference: Wexler's ND listing | Nebraska listing | South Dakota listing
False Positives to Avoid
Machine Doubling—flat, shelf-like smearing on the ear area—is extremely common on these coins and looks similar to a beginner. The key difference: Machine Doubling is flat and cuts into the side of the ear. A genuine doubled die shows a raised, rounded secondary image. Die deterioration (mushy, indistinct ear detail) also mimics doubling but has no premium. Neither Machine Doubling nor die deterioration adds any numismatic value.
Market Values
These are considered minor varieties. Values range from $5–$25 for typical examples. Top-tier graded specimens may command more, but no major auction house records are documented for these varieties. Value is primarily driven by the variety collector community.
2006 Quarter Struck on Wrong Planchet
Comparison showing quarter design struck on undersized planchet vs. standard quarter size.
How to Identify
A wrong planchet error occurs when a blank intended for a different denomination (such as a nickel or dime) enters the quarter press. The finished coin will show a quarter design but with obviously wrong size, weight, or metal color. Verify by weighing and measuring: a standard quarter is 5.67g and 24.3mm. Any significant deviation in both dimensions points to a wrong planchet—not wear or damage.
False Positives to Avoid
Coins that have been ground down, filed, or post-mint altered can mimic wrong planchet errors. Always check weight and diameter together. Environmental damage changes surface color but not size. Authentication by PCGS, NGC, or ANACS is essential before any sale.
Market Values
Value is $1,000+, varying widely based on the planchet type and grade. No specific 2006 auction records are documented in public records; value is extrapolated from similar State Quarter wrong planchet sales.
2006 Quarter Off-Center Strike
Off-center strike showing blank crescent on one side and shifted design; date visible at top.
How to Identify & Value
An off-center strike occurs when the blank is not centered under the dies. A visible crescent of unstruck metal appears on one side. Value increases with severity, provided the date is visible—a date-less off-center coin is worth significantly less:
- ✦ 1–10% off-center, date visible: $5–$50
- ✦ 10–40% off-center, date visible: $20–$150
- ✦ 40–60% off-center, date visible: $50–$300+
- ✦ No date visible (any %): $10–$60
Auction Record
~$336 for a 70% off-center example. Do not confuse with a misaligned die (MAD), where the design is slightly shifted but the coin is fully struck to the rim—MAD coins carry little premium.
2006 Nevada "Pooping Horse" Die Chip
Nevada reverse close-up: small raised die chip visible between the horse's rear legs.
Origin & Background
A small piece of die steel broke off between the horse's rear legs, leaving a raised lump of metal on every coin struck thereafter. The chip became an internet sensation under the nickname "Pooping Horse"—and promptly got massively overhyped. This is a verified die chip, but it is not a major mint error in the same category as a missing clad layer or major cud. Both P and D mint Nevada quarters can show this chip.
How to Identify
- Under a loupe, look between the horse's rear legs on the Nevada reverse.
- A genuine die chip is raised above the coin's surface and has an irregular, lumpy shape.
- The chip should be a consistent feature—not a scratch, gouge, or applied material.
- Larger chips (>2mm) are more desirable than tiny microscopic ones.
False Positives to Avoid
Dirt, glue, or dried debris stuck between the horse's legs is frequently mistaken for this chip. A true die chip is part of the coin's metal surface—it won't wash off or scrape away. Post-mint damage (a gouge or indentation) will be below the field surface, not raised above it.
Market Reality Check
Despite eBay listings asking $30–$100+, realized prices for raw circulated examples are typically $1–$5. Novelty interest is real, but numismatic value is limited. Do not pay error-coin premiums for this variety. See the Numismatic News analysis for context.
2006 State Quarter Common Traps: Avoid These Disappointments
These are the most common reasons collectors think they have a valuable error—and don't. Understanding them saves money on unnecessary grading submissions.
⚠️ Machine Doubling (MD)
Flat, stepped, shelf-like doubling on the date, LIBERTY, or IN GOD WE TRUST. Letters look smeared sideways or appear to have a "shadow."
After striking, the die retracts slightly and slips, leaving a secondary impression in the softer struck metal. This is a mechanical artifact from the striking process itself, not from die creation.
- The doubled images are flat and cut into the side of letters, not raised above the field.
- True doubled dies show raised, rounded secondary images with "split serifs"—distinct notches at letter corners.
- Machine Doubling is extremely common on 2006 quarters and carries zero numismatic premium.
Value: Face value only. Do not submit for grading.
Left: Machine Doubling (flat, shelf-like). Right: True Doubled Die (raised, rounded, split serifs).
⚠️ Satin Finish Confusion
A grainy, matte-like surface with no cartwheel luster. The coin looks different from circulation quarters. Sellers list these as "rare matte," "special strike," or "error."
The U.S. Mint included "Satin Finish" P and D quarters in 2006 Uncirculated Mint Sets. The finish was applied intentionally via a sandblasting process—it is the standard issue for Mint Set coins, not an accident.
- The satin texture is uniform across the entire coin surface—fields and design alike.
- True business strikes have a shiny, mirror-like field with a distinctive "cartwheel" luster when rotated under light.
- Satin Finish coins often come in mint cellophane or plastic—look for the original packaging.
Value: ~$1–$3 raw. Not an error. Not rare.
Business strike (left) showing cartwheel luster vs. Satin Finish Mint Set coin (right) with uniform matte surface.
⚠️ Gold-Plated / Colorized "Special Edition" Quarters
A quarter with a shiny gold, platinum, or colorized surface. Often sold in sets on TV shopping channels or novelty coin websites as "limited editions."
Private companies purchase ordinary quarters and apply electroplated or painted coatings post-mint. The U.S. Mint does not sell gold-plated quarters. These are post-mint alterations.
- The coin will weigh more than 5.67g due to the added coating.
- Under magnification, the design details appear thicker or slightly obscured by the plating.
- TPGs (PCGS, NGC) classify these as damaged coins and will not certify them as error coins.
Value: Face value only. Considered damaged.
2006 State Quarter Grading: How Condition Affects Error Values
Grade matters significantly for 2006 State Quarter errors, but the threshold for grading submission depends heavily on the error type.
- Missing Clad Layer: Grade is critical. The $3,760 auction record was for an MS68. An MS63 example would bring a fraction of that. Submission to PCGS or NGC is strongly recommended for any example weighing ~4.70g.
- Colorado Cud: Even lower-grade examples (MS60–64) sell for $50–$150. Higher grade and larger cud size both increase value.
- Off-Center Strikes: Grade matters less than the percentage off-center and date visibility. A 50% off-center coin in circulated grade still commands significant premiums.
- Doubled Ear Varieties: These are minor varieties worth $5–$25. Grading fees typically exceed potential gains unless the coin is in gem uncirculated condition. Raw sales are common for this tier.
- Die Chips (Pooping Horse): Do not submit for grading. Fees will exceed returns.
💡 The $50 Rule
Only submit a coin for third-party grading if the conservative value of the authenticated error exceeds the total cost (submission fee + shipping + insurance) by at least 3×. For minor die chips and small die cracks, raw sales are almost always the better option.
2006 State Quarter Authentication: When and Where to Get Certified
Professional authentication by a Third-Party Grader (TPG) is essential for any high-value 2006 error. Without a slab from PCGS, NGC, or ANACS, buyers will significantly discount your coin—or refuse to buy entirely.
When to Submit
- Always submit: Missing Clad Layer (coin weighs ~4.70g), Wrong Planchet errors
- Submit if strong example: Major Cuds (rim die breaks with significant design obliteration), Off-Center strikes (>20%)
- Submit only top-grade examples: Doubled Ear varieties in gem uncirculated condition
- Do not submit: Die chips, Machine Doubling, Satin Finish coins, struck-through grease (minor)
TPG Strategy
PCGS and NGC are the two most recognized graders for error coins—their slabs command the highest secondary market prices. ANACS is a lower-cost alternative appropriate for moderate-value errors ($50–$200 range). Do not clean, polish, or attempt to improve any suspected error coin before submission; cleaning permanently destroys value and will result in a "Details" grade.
Dealer referral information is not available in the current data source. Contact PCGS or NGC for authorized dealer networks.
2006 State Quarter Errors: Frequently Asked Questions
What is the most valuable 2006 State Quarter error?
The Missing Clad Layer error holds the record. A 2006-D North Dakota quarter with a missing clad layer graded PCGS MS68 sold for approximately $3,760. The definitive test is weight: the coin must weigh ~4.70g (versus the normal 5.67g) and show a copper-red face.
How do I know if my 2006 quarter is missing a clad layer?
Weigh it on a digital scale accurate to 0.01g. A normal clad quarter is 5.67g. A missing clad layer quarter is approximately 4.70g—roughly 15–20% lighter. Visual appearance alone is not enough; environmental damage can make a normal-weight coin look copper-colored.
What is the Nevada "Pooping Horse" quarter worth?
Despite viral attention and inflated eBay asking prices, raw circulated examples typically sell for $1–$5. It is a minor die chip (a small piece of die steel broke off between the horse's rear legs), not a major variety. Very large chips or high-grade graded specimens may fetch slightly more, but it is not in the same value category as a missing clad layer or a major cud.
What is Machine Doubling, and why isn't it valuable?
Machine Doubling (MD) occurs when a die slips slightly during retraction after striking, leaving a flat, shelf-like secondary impression. It is a post-striking mechanical artifact, not a die variety. True valuable doubled dies are created during hub-to-die transfer and show raised, rounded secondary images with notched serifs. Machine Doubling is found on a very large percentage of 2006 quarters and carries zero numismatic premium.
Are 2006 Satin Finish quarters errors or rare varieties?
No. Satin Finish quarters were the standard product included in 2006 P and D Uncirculated Mint Sets. The grainy, matte-like surface was intentionally applied. They are not errors, not matte proofs, and not rare discovery pieces. Raw value is approximately $1–$3. Do not pay error premiums for them.
Is a gold-plated 2006 quarter valuable?
No. Gold-plated or colorized quarters are post-mint alterations applied by private companies, not the U.S. Mint. TPGs classify them as damaged coins. They are worth face value ($0.25) from a numismatic standpoint, regardless of what TV shopping channels charge for sets.
Which 2006 state design is most likely to produce a valuable error?
North Dakota holds the highest documented auction record due to the PCGS MS68 missing clad layer sale at $3,760. Colorado is notable for its documented Cud variety. However, missing clad layers and wrong planchet errors can occur on any state—the error type matters more than the state design.
What tools do I need to check 2006 quarters for errors?
Three tools cover the vast majority of checks: (1) a digital scale accurate to 0.01g for weight testing (the most important tool), (2) a 10x–20x loupe for inspecting doubling, die chips, and cuds, and (3) a magnet to confirm the coin is not a steel slug or fake (genuine clad quarters are non-magnetic).
2006 State Quarter Error Guide: Sources & Methodology
All values, auction records, diagnostics, and specifications in this guide are sourced from the following references. Values are current as of January 2026.
- PCGS CoinFacts — 2006-D North Dakota Quarter (auction records, graded population)
- Wexler's Doubled Dies — 2006 North Dakota WDDO-001
- Wexler's Doubled Dies — 2006 Nebraska WDDO-001
- Wexler's Doubled Dies — 2006 South Dakota WDDO-001
- Wexler's Doubled Dies — Mechanical Doubling Reference
- Numismatic News — Nevada Pooping Horse Quarter Analysis
- GreatCollections — 2006-P North Dakota Clipped Planchet (ANACS AU-58)
- GreatCollections — 2006-P South Dakota Broadstrike (ANACS MS-66)
A note on images: To help illustrate coin diagnostics and rare varieties — especially complex errors that are difficult to describe in text alone — this guide uses AI-generated images. All written values, diagnostics, and variety attributions have been manually reviewed against the cited sources above. While our editorial team works to ensure every image is accurate and helpful, AI-generated illustrations may occasionally misrepresent fine details. If you spot any discrepancy between an image and its written description, please contact us or leave a comment below — we review all feedback and correct errors promptly. Numismatic knowledge is a community effort, and your input helps us build a more accurate resource for everyone.
