1870 Half Dime Value: What's It Worth Today?
1870 Half Dime values range from $25 (G-4) to $22,800 (MS-68), with the unique 1870-S selling for $3.12 million. Complete price guide and grading tips.
The 1870 Half Dime is worth $25 to $22,800 for Philadelphia issues, with the unique 1870-S commanding $3.12 million.
- Circulated (Philadelphia): $25 – $140
- Uncirculated (Philadelphia): $165 – $22,800
- Proof: $290 – $10,500+
- 1870-S unique specimen: $3,120,000 (MS-64)
The Philadelphia business strike is a significant condition rarity despite its 535,000 mintage, with only about 1,000 surviving in all grades.
What's Your 1870 Half Dime Worth?
Select your coin's mint mark and condition to get a value estimate.
Focus on choosing the right sales channel to maximize your return.
Expected: ()
1870 Half Dime: A Denomination's Final Chapter
The 1870 Liberty Seated Half Dime represents the twilight years of a denomination soon to be discontinued
The 1870 Half Dime marks a pivotal moment in American numismatic history—the final years of a denomination that had served the nation since the earliest days of the U.S. Mint. This five-cent silver coin exists in three distinct forms: a Philadelphia business strike with a deceptively high mintage that belies its true scarcity, a limited-edition Proof striking for collectors, and the legendary 1870-S, a unique specimen that ranks among the most celebrated rarities in all of American coinage.
Values span an extraordinary range, from $25 for heavily circulated examples to over $3 million for the sole surviving San Francisco specimen. The introduction of the Shield nickel in 1866 had already begun rendering the small, easily lost silver half dime obsolete for commerce, making the 1870 issues both historically significant and highly collectible today.
How to Identify Your 1870 Half Dime
Proper identification begins with understanding the coin's design type and mint mark location. All 1870 half dimes belong to the Type 5 or "Legend Obverse" design of the Liberty Seated series, introduced in 1860 and continuing through the denomination's end in 1873.
The mint mark location is critical for identifying the ultra-rare 1870-S specimen
The obverse features Liberty seated on a rock, holding a shield inscribed "LIBERTY" in her right hand and a pole with a Phrygian cap in her left. The key diagnostic distinguishing this type from earlier issues is the inscription UNITED STATES OF AMERICA surrounding Liberty, replacing the 13 stars used on previous designs. The date "1870" appears below the rock.
The reverse displays an ornate agricultural wreath composed of corn and wheat, encircling the denomination expressed as HALF DIME. Unlike earlier types, no inscription appears around the periphery of the reverse.
Mint Mark Identification
Philadelphia Mint: Coins struck at Philadelphia bear no mint mark. Both business strikes and Proof issues were produced at this facility.
San Francisco Mint: The unique 1870-S half dime features a small, capitalized 'S' mint mark positioned on the reverse, within the wreath, directly below the ribbon bow. This placement represented a change from earlier 1860s San Francisco issues (where the mint mark appeared below the wreath) and established the standard for subsequent 1871-S and some 1872-S issues.
Strike Type Distinctions
Business strikes, intended for circulation, typically exhibit commercial-quality striking with satiny or "cartwheeling" luster on uncirculated examples. High points of the design—particularly the lower portion of Liberty's shield and the upper-left section of the reverse wreath—often show weakness due to die opposition, a characteristic of the series rather than wear.
Proof strikes display dramatically different characteristics. Struck with specially prepared dies on polished planchets, Proofs feature highly reflective, mirror-like fields contrasting with sharply detailed, often frosted devices. This "Cameo" effect, when pronounced, commands significant premiums. Proof rims are typically sharper and more squared-off than those on business strikes.
1870 Half Dime Value Guide
The market for 1870 half dimes is sharply stratified by mint of origin and state of preservation. While all three issues share the same date, their values diverge dramatically based on rarity and collector demand.
Value escalates dramatically with improved condition, especially in mint state grades
1870 Philadelphia Business Strike
Despite a substantial mintage of 535,000 pieces—one of the higher outputs for the Legend Obverse series—the 1870 Philadelphia business strike is a classic condition rarity. Decades of circulation and subsequent melting events following the denomination's 1873 termination left an estimated 1,000 survivors in all grades combined, with only about 35 examples existing in MS-65 or higher.
In lower circulated grades, the coin remains accessible. A Good-4 (G-4) example starts around $25-$30, rising steadily through Very Fine-20 ($50-$55) and Extremely Fine-40 ($55-$65) to About Uncirculated-58 (approximately $140-$150).
The transition to Mint State marks a dramatic value escalation. An MS-60 specimen retails for approximately $165-$185, while a choice MS-63 commands $325-$375. In Gem condition, scarcity drives prices sharply higher: MS-65 examples are valued at $950-$1,100, jumping to $1,800-$2,000 in MS-66, and exceeding $4,000 in MS-67.
| Grade | NGC Value | PCGS Value |
|---|---|---|
| G-4 | $25 | ~$30 |
| VF-20 | $50 | ~$55 |
| EF-40 | $55 | ~$65 |
| AU-50 | $90 | ~$100 |
| AU-58 | $140 | ~$150 |
| MS-60 | $165 | $185 |
| MS-62 | $220 | $250 |
| MS-63 | $325 | $375 |
| MS-64 | $500 | $575 |
| MS-65 | $950 | $1,100 |
| MS-66 | $1,800 | $2,000 |
| MS-67 | $4,300 | $4,000 |
| MS-68 | $15,000 | $20,000 |
The finest known example, graded MS-68 by PCGS, realized $22,800 (PCGS CoinFacts, Aug 2023) at auction, underscoring the immense premium placed on top-population specimens.
1870-S San Francisco Business Strike
The 1870-S half dime stands as one of the great treasures of United States numismatics. With only one known example, its story combines historical circumstance, mystery, and astonishing market performance.
Official U.S. Mint records report no mintage of half dimes at San Francisco in 1870. However, research revealed that six pairs of half dime dies were shipped from Philadelphia to San Francisco on December 15, 1869. Numismatic scholars believe a single specimen was struck for inclusion in the cornerstone of the new San Francisco Mint building, then under construction.
The coin remained unknown to collectors until 1978, when it reportedly surfaced in a dealer's "junk box" in Illinois. After extensive authentication—including microscopic and scanning electron microscopic examination—the specimen was declared genuine and unaltered.
The sole known 1870-S half dime, graded MS-64 by PCGS, achieved a record-breaking $3,120,000(Heritage Auctions, Jan 15, 2023) at auction, establishing it as one of the most valuable U.S. coins in existence.
1870 Philadelphia Proof Strike
The Philadelphia Mint produced 1,000 specially struck Proof coins for collectors in 1870. With an estimated 700 surviving in all grades and approximately 80 examples existing in PR-65 or better, these coins are scarce but generally available to dedicated collectors.
Values for standard Proofs begin at approximately $290 for PR-60 and climb steadily: $420 (PR-62), $580 (PR-63), $860 (PR-64), $1,550 (PR-65), $2,000 (PR-66), $5,400 (PR-67), and $10,500 for the rare PR-68 grade.
Specimens displaying strong frosted contrast between devices and mirrored fields receive Cameo (CAM) or Deep Cameo (DCAM) designations, commanding significant premiums. A PR-66 CAM realized $1,740 (NGC, 2024), while a PR-67 CAM brought $4,207 (NGC, 2023) at auction.
| Grade | Standard Proof | Cameo (Est.) |
|---|---|---|
| PR-60 | $290 | ~$350-$450 |
| PR-62 | $420 | ~$500-$650 |
| PR-63 | $580 | ~$700-$900 |
| PR-64 | $860 | ~$1,000-$1,300 |
| PR-65 | $1,550 | ~$1,800-$2,400 |
| PR-66 | $2,000 | ~$2,500-$3,500 |
| PR-67 | $5,400 | ~$6,500-$8,500 |
| PR-68 | $10,500 | ~$12,000+ |
Grading Your 1870 Half Dime
Accurately grading Liberty Seated half dimes requires understanding both circulation wear patterns and inherent production characteristics that can mimic wear. The ability to distinguish between these factors directly impacts valuation.
Understanding where wear appears first is essential for accurate grade assessment
On the obverse, the first signs of wear appear on Liberty's highest points: her left knee, the breast area, and the hair above her forehead. As wear progresses, detail loss extends to the shield's surface and the folds in Liberty's gown. In heavily circulated grades (Good through Very Good), the date and peripheral lettering remain visible, but Liberty's figure shows significant flattening.
The reverse shows initial wear on the tips of the wreath leaves—particularly those at the upper portions—and the loops of the ribbon bow. In lower grades, the inscription HALF DIME remains legible while wreath detail progressively softens.
Distinguishing strike weakness from wear is critical—weak strikes show incomplete detail with full luster
The Strike vs. Wear Challenge
Many 1870 half dimes were struck with insufficient die pressure to bring up all design elements fully. The lower portion of Liberty's shield and the upper-left section of the reverse wreath are notoriously weak strike areas. This is a function of die opposition and metal flow during striking, not circulation wear.
A coin may retain full mint luster and uncirculated surfaces while lacking complete detail in these areas. Such specimens should be graded based on surface preservation, not the weakness inherent to their production. Coins that are both fully struck and in mint state condition command significant premiums over weakly struck examples in the same technical grade.
Circulated Grades (G-4 through AU-58)
Good-4 (G-4): Liberty's outline is visible but heavily worn. The date is clear. Most design detail has been lost to circulation.
Very Fine-20 (VF-20): Liberty shows moderate wear with major design elements visible. Shield lines may be partially distinct. Wreath details are worn but identifiable.
Extremely Fine-40 (EF-40): Light wear on high points. Most design detail remains, including shield lines and wreath definition. Luster may appear in protected areas.
About Uncirculated-58 (AU-58): Only slight wear on the very highest points. Significant original luster remains, typically 50% or more of the coin's surfaces.
Mint State Grades (MS-60 through MS-70)
MS-60 to MS-62: No wear, but numerous contact marks and possibly weak luster. Surface quality separates these grades from higher levels.
MS-63 to MS-64: Moderate to minimal contact marks. Good luster and eye appeal. These grades represent the most commonly encountered mint state examples.
MS-65 to MS-66: Gem quality with minimal surface disturbances. Strong luster and attractive surfaces. Significant rarity for the 1870 date.
MS-67 and Higher: Exceptional preservation with virtually pristine surfaces. Only about 10-15 examples are believed to exist at or above this level.
Authentication and Counterfeit Detection
Detecting cleaned coins and counterfeits requires careful examination under magnification
Given the significant values commanded by high-grade and Proof 1870 half dimes, authentication is paramount. Counterfeiters target both high-value specimens and create altered coins to deceive unwary collectors.
Begin verification by checking physical specifications. An 1870 half dime should weigh 1.24 grams and measure approximately 15.5 to 15.9 millimeters in diameter. Significant deviations may indicate a counterfeit. The edge should display uniform reeding with no irregularities or file marks.
Under magnification, examine lettering and date numerals closely. Genuine coins exhibit sharp, well-defined details with proper font shapes and spacing. Counterfeits often display a "mushy" or soft appearance, with incorrect character forms or uneven spacing. The unique 1870-S specimen underwent extensive authentication, including specific gravity measurement and scanning electron microscopy, to verify its genuineness and rule out alterations to the date or mint mark.
Improper cleaning represents the most common cause of diminished value for collectible coins. Cleaned specimens exhibit an unnaturally bright, dull, or "whizzed" appearance. Under magnification, cleaning reveals a network of fine, parallel scratches or "hairlines" across surfaces. The natural patina or toning that develops over time will be stripped away, leaving a lifeless surface.
Coins that have been cleaned receive "Details" grades from grading services (e.g., "XF Details, Cleaned") and typically trade at 50% or less of the value of problem-free examples with equivalent detail. Never clean coins under any circumstances—even gentle wiping with a soft cloth imparts microscopic hairlines and permanently impairs surface quality and value.
For any high-value specimen, certification by PCGS or NGC is essential. Their authentication expertise, combined with secure encapsulation, provides protection against counterfeits and guarantees the coin's grade. The modest cost of certification is insignificant compared to the financial risk of purchasing an altered or counterfeit coin.
Preservation and Care
Proper long-term storage and handling practices are essential to protect your 1870 half dime's condition and value. Silver coins are particularly susceptible to environmental damage, making correct preservation techniques critical.
Store coins in inert, archival-quality materials. For raw (ungraded) coins, Mylar flips provide safe, affordable protection. Avoid soft PVC flips, which can leach harmful chemicals and damage silver surfaces over time through a process known as "PVC contamination." This creates a sticky green residue that permanently mars the coin's appearance.
Maintain a cool, dry, and stable environment for coin storage. Avoid exposure to extreme temperature fluctuations, high humidity, and airborne contaminants. Silver naturally tones over time, developing attractive patina colors ranging from light gold to deep blues and purples. This toning is generally desirable and should not be removed. Rapid toning or black spotting may indicate environmental problems requiring correction.
Always handle coins by their edges, preferably while wearing soft cotton gloves to avoid transferring skin oils and residues to surfaces. Even trace amounts of oil can create fingerprints that become permanently etched into the metal over time. Never touch the coin's face (obverse or reverse) with bare fingers.
For high-value specimens—such as mint state or Proof 1870 half dimes—professional encapsulation by PCGS or NGC is the recommended standard. Their sealed, inert plastic holders provide optimal protection against environmental damage and physical harm while guaranteeing authenticity and grade. The certification fee represents a small investment compared to the coin's value and the protection it provides.
Mint Errors on 1870 Half Dimes
While no specific, recurring errors are famously associated with the 1870 half dime, general error types common to 19th-century coinage can occur on individual specimens. The value of an error coin depends on the error type, severity, and the underlying grade of the host coin.
Off-Center Strikes
Off-center strikes occur when the planchet is not properly seated between the dies during striking. A portion of the coin's design will be missing, with a corresponding blank area of unstruck planchet visible.
Minor off-center strikes (1-5% off-center) may add a modest premium of $50 to $100 over normal value. More dramatic strikes (10-20%) can increase value by $150 to $300. Major off-center strikes exceeding 50% displacement, where the date remains fully visible, are rare and can command premiums of $500 or more. The date's visibility is critical—an off-center strike with an absent date typically has minimal numismatic value.
Die Cracks and Cuds
These errors result from die fatigue and failure during production. Die cracks appear as fine, raised lines on the coin's surface, representing metal that flowed into cracks in the die during striking. A cud is a raised blob of metal on the coin's edge, created when a piece of the die breaks completely away.
Minor die cracks typically add little to no value, as they were common during this era's production. Significant, lengthy cracks—such as those bisecting the entire coin—or retained cuds can add premiums of $50 to $150 or more, depending on size and location. Large cuds affecting major design elements command the highest premiums.
Lamination Errors
Lamination errors are flaws in the planchet metal where a layer flakes, peels, or splits away from the coin's surface. These result from impurities or improper preparation of the silver-copper alloy during planchet production.
Minor laminations are relatively common and add little value. Large, detached, or retained laminations—particularly those creating dramatic visual effects—can increase a coin's value by $50 to $150 or more. The error's location matters: laminations affecting major design elements are more desirable than those on peripheral areas.
Recent Auction Results
Auction records provide critical market insights for 1870 half dime collectors, demonstrating the premium prices commanded by high-grade specimens and the extraordinary value of the unique 1870-S.
For Philadelphia business strikes, recent results confirm strong demand at all grade levels. A VF-35 example brought $53 (NGC, Sep 2023) while AU-55 and AU-58 specimens realized $156 (PCGS, Aug 2021) and $114 (PCGS, Mar 2021) respectively.
In mint state, an MS-62 sold for $252 (PCGS, Dec 2021), while an MS-63 achieved $528 (NGC, Aug 2022). Higher grades demonstrate the condition rarity premium: an MS-64 brought $720 (NGC, Jun 2023), MS-66 realized $1,920 (PCGS, Nov 2017), and MS-67 achieved $3,525 (PCGS, Apr 2017). The record $22,800 (PCGS, Aug 2023) for an MS-68 confirms the exceptional value of top-population pieces.
The 1870-S unique specimen's auction history traces an extraordinary value trajectory: $425,000 in 1980, declining to $176,000 in 1985, then steadily climbing through $253,000 (1986), $661,250 (2004), and ultimately $3,120,000 (Heritage Auctions, Jan 15, 2023).
Proof auction results demonstrate the premium commanded by Cameo-designated specimens. While standard proofs trade within price guide parameters, a PR-66 CAM realized $1,740 (NGC, 2024), a PR-67 CAM brought $4,207 (NGC, 2023), and a PR-68 achieved $8,100 (NGC, 2022).
Frequently Asked Questions
How much is my 1870 Half Dime worth?
Value depends on mint mark and condition. Philadelphia business strikes range from $25 in Good-4 to over $22,000 in MS-68. Proofs start at $290 and can exceed $10,000 in top grades. The unique 1870-S specimen is valued at $3.12 million. Check your coin's grade and mint mark to determine its specific value using the price guide above.
How do I identify the mint mark on an 1870 Half Dime?
Philadelphia coins have no mint mark. The extremely rare 1870-S displays a small 'S' on the reverse, within the agricultural wreath, directly below the ribbon bow. This placement differs from earlier 1860s San Francisco issues where the mint mark appeared below the wreath. Most collectors will encounter Philadelphia strikes without mint marks.
Should I get my 1870 Half Dime professionally graded?
Professional grading by PCGS or NGC is recommended for any coin in Very Fine condition or better, and essential for mint state or Proof examples. The modest certification fee is justified by authentication guarantees, accurate grade assignment, and protection via secure encapsulation. For circulated coins below VF, raw storage in Mylar flips is acceptable unless the coin has special characteristics warranting certification.
What's the difference between business strike and Proof 1870 Half Dimes?
Business strikes were made for circulation using standard production methods, resulting in satiny luster and sometimes weak striking. Proofs were specially struck for collectors using polished planchets and prepared dies, creating mirror-like fields and sharply detailed, often frosted devices. Proofs have squared-off rims and were never intended for circulation. Both types can be valuable depending on condition.
How can I tell if my coin has been cleaned?
Under magnification, cleaned silver coins reveal fine parallel scratches or hairlines across their surfaces. They often appear unnaturally bright, dull, or lifeless, lacking the natural patina that develops over time. Cleaned coins receive "Details" grades and trade at significant discounts—typically 50% or less of problem-free values. Never clean coins yourself; even gentle wiping causes permanent damage.
Is the 1870-S Half Dime really worth over $3 million?
Yes. The 1870-S is unique—only one specimen is known to exist. It was likely struck for inclusion in the San Francisco Mint building cornerstone and remained unknown until 1978. After extensive authentication, it sold for $3,120,000 in January 2023, making it one of the most valuable U.S. coins in existence. Its value derives from absolute rarity and historical significance.
Why is the 1870 Philadelphia business strike valuable despite high mintage?
Although 535,000 were minted, the 1870 is a condition rarity with only about 1,000 surviving in all grades. Most were melted following the half dime's discontinuation in 1873. Only about 35 examples exist in MS-65 or better, making high-grade specimens extremely scarce and valuable. This demonstrates that mintage figures alone don't determine rarity—survival rate is equally important.
Are there any valuable die varieties for the 1870 Half Dime?
No major die varieties are recognized for the 1870 half dime by leading grading services or reference works. Unlike some dates in the Liberty Seated series, 1870 shows relative uniformity in die production. This means collectors need only acquire one high-quality example to fully represent the date, without searching for multiple die marriages or varieties.
How should I store my 1870 Half Dime?
Use archival-quality Mylar flips for raw coins, avoiding soft PVC holders that can damage silver. Store in a cool, dry, stable environment away from temperature fluctuations and humidity. Always handle coins by their edges, preferably with cotton gloves. For high-value mint state or Proof specimens, professional encapsulation by PCGS or NGC provides optimal protection and authentication.
What is the melt value of an 1870 Half Dime?
With 90% silver composition and 0.0359 troy ounces of actual silver weight, the melt value is approximately $1.75 at current silver prices. However, this intrinsic value is irrelevant for collectible coins. Even the most heavily worn 1870 half dime in Good-4 condition is worth $25—over 1,300% above melt value. The coin's numismatic value is driven by rarity and demand, not silver content.
Price Guide Methodology
This guide's valuations are compiled from multiple authoritative sources, including NGC Coin Explorer, PCGS CoinFacts, and recent auction results from major numismatic houses including Heritage Auctions. Price ranges reflect current market conditions as of late 2025.
Coin values fluctuate based on precious metal prices, market demand, and individual coin characteristics including strike quality, surface preservation, and eye appeal. Prices quoted represent retail values for problem-free coins with typical strike quality. Specimens with exceptional characteristics command premiums above guide values, while coins with issues such as cleaning, damage, or weak strikes trade at discounts. Actual selling prices may vary based on these factors and current market conditions.
For the most current valuations and to verify the authenticity and grade of specific coins, consult with professional numismatists or utilize the certification services of PCGS or NGC. Additional information on the Liberty Seated half dime series is available through the Newman Numismatic Portal and specialized collector organizations.
