Can a coin have more than one mint mark?
Short answerYes, but it's rare. Usually, a coin has only one mint mark, but errors or special issues can result in two or more.
How Multiple Mint Marks Happen
Multiple mint marks can occur accidentally, such as when a coin is struck twice with different dies, or intentionally, like on some commemorative coins that feature mint marks from multiple facilities. In modern U.S. coins, a single mint mark is standard, but older or foreign coins may vary.
- Repunched mint marks (RPMs) can look like two marks but are actually one mark struck multiple times.
- Some coins, like the 1955 doubled die cent, have a mint mark that appears doubled due to die doubling.
- In other countries, coins may have multiple mint marks to indicate different production locations or years.
- Collectors often prize coins with clear, distinct multiple mint marks as errors or varieties.
Notable Examples
The 1955 doubled die cent is famous for its doubled date and mint mark, though it's technically a die variety, not a multiple mint mark. Another example is the 1937-D '3-Legged' buffalo nickel, where the mint mark is normal but the die was over-polished. Truly separate mint marks on one coin are extremely rare and usually result from major errors like multiple strikes.
Common mistakes
- Assuming any doubling on a mint mark means two mint marks—it's usually just die doubling or machine doubling.
- Thinking all coins from a mint have the same mint mark; some years or denominations may lack one entirely.
- Believing multiple mint marks are common; they are exceptional and often command high premiums.
