100 Most Valuable Error Penny List: Complete Guide to DDO, DDR, RPM Collections (With Pictures)

The numismatic market places different values on various types of errors, with some commanding significantly higher premiums than others:

Double Die Obverse (DDO)

The most prestigious and valuable of all penny errors, DDO occurs during the hub and die production process. When the die is made, it receives multiple impressions from a hub containing the coin’s design. If these impressions are misaligned, it results in a doubled appearance on the finished coin. Famous examples include the 1917 DDO and 1969-S DDO, which regularly command five-figure prices.

Double Die Reverse (DDR)

Similar to DDO but occurring on the reverse side, DDR varieties typically command lower premiums than their DDO counterparts. However, certain exceptional examples, particularly those from the 19th century, can still achieve significant values.

Repunched Mintmarks (RPM)

These errors occur when the mintmark is punched multiple times in slightly different positions. While generally less valuable than major doubled dies, RPMs from certain years or in combination with other errors can be quite valuable.

Multiple Plant Marks (MPD)

These subtle varieties show evidence of multiple date punches or other mint-made marks. While interesting to specialists, they typically command more modest premiums unless exceptionally dramatic.

The color designation of copper coins plays a crucial role in their value, often making the difference between a modest and an exceptional price:

• RD (Red): The most desirable state, showing at least 95% of original mint red color. These command the highest premiums and are particularly rare in early dates.
• RB (Red-Brown): Shows a mix of original red color and natural brown toning. Values typically range from 40-75% of RD prices.
• BN (Brown): The most common condition, showing complete brown color. While still valuable for rare varieties, these command the lowest premiums.
• CAM/DCAM: For proof coins only, indicating cameo or deep cameo contrast between the fields and devices.

Certain years have achieved legendary status in the error coin community:

1917 DDO

The king of error pennies, this variety shows dramatic doubling and is exceptionally rare in high grades. Its status as a World War I era coin adds to its appeal.

1969-S DDO

Perhaps the most famous doubled die, with fewer than 100 examples known. Its discovery during the height of coin collecting in America cemented its legendary status.

1873 Varieties

Multiple significant doubled dies from this year exist, with the Closed 3 and Open 3 varieties adding another layer of collectibility.

The relationship between grade and value is often exponential rather than linear:

• MS67 and Above: These exceptional specimens often sell for multiples of lower grade examples. The 1917 DDO in MS67 RD at $84,000 demonstrates this premium.
• MS65-66: The sweet spot for many collectors, offering excellent eye appeal with more reasonable prices.
• MS63-64: The most common grades for investment-quality error pennies.
• Below MS63: Values drop significantly, though major varieties still command strong prices.

The error penny market shows distinct patterns:

• Major auction houses like Heritage and Stack’s Bowers typically handle the highest-value specimens
• Online platforms like eBay serve the middle market
• Dealer networks often handle private treaty sales of significant pieces
• Regional shows remain important for discovering new varieties

Essential Tips for Error Penny Investors

1. Authentication is Critical: Always prefer PCGS or NGC certified examples for significant purchases
2. Study Color Designations: Understanding the subtle differences between RD, RB, and BN can prevent costly mistakes
3. Research Variety Attribution: Learn to identify the FS numbers and other attribution details
4. Monitor Market Trends: Keep track of auction results and price guides
5. Build Relationships: Develop connections with reputable dealers specializing in error coins

The error penny market shows several promising trends:

• Increasing appreciation for classic varieties from the pre-1940 era
• Growing interest in proof error coins, particularly from the 1950s and 1960s
• Strong demand for highest-grade examples of all major varieties
• Emerging collector base in international markets