While most dimes are worth just 10 cents, certain rare varieties can be worth thousands—or even millions—of dollars. These valuable coins often result from minting errors, low production numbers, or historical significance. Below is a list of ten of the most valuable American dimes that have been found in circulation.

1. 1975 No-S Roosevelt Dime

The 1975 No-S Roosevelt Dime is one of the rarest modern U.S. coins. Intended as a proof coin from the San Francisco Mint, it lacks the “S” mint mark, making it extremely rare. Only two such coins are known to exist. One sold at auction in 2019 for $456,000.

2. 1894-S Barber Dime

The 1894-S Barber Dime is one of the most famous and valuable U.S. coins. Only 24 were minted, and just nine are known to exist today. These dimes were produced under mysterious circumstances at the San Francisco Mint. One of these coins sold for over $1 million.

3. 1916-D Mercury Dime

The 1916-D Mercury Dime is highly sought after by collectors. Only 264,000 were minted in Denver, making it the lowest mintage of the series. A 1916-D Mercury Dime in excellent condition can be worth up to $20,000.

4. 1942/1 Mercury Dime

This overdate error shows remnants of a 1941 date beneath the 1942, resulting from a die overstrike. A 1942/1 Mercury Dime in Mint State condition sold for $76,375 at auction in 2016.

5. 1968 No-S Roosevelt Dime (Proof)

Intended as a proof coin from the San Francisco Mint, this dime lacks the “S” mint mark, making it extremely rare. These coins are highly sought after by collectors and can be worth up to $15,000.

6. 1982 No-P Roosevelt Dime

The Philadelphia Mint accidentally omitted the “P” mint mark on some dimes in 1982, making them rare finds. These coins can be worth up to $300 in uncirculated condition.

7. 1996-W Roosevelt Dime

Minted at the West Point Mint to commemorate the 50th anniversary of the Roosevelt dime, this coin bears a “W” mint mark and was not released into general circulation. Only around 1.5 million were produced, making it a low-mintage piece that’s highly sought after by collectors.

8. 1970-S Roosevelt Dime, No Mint Mark

This proof coin was mistakenly struck without the “S” mint mark, making it a rare error. These coins are highly sought after by collectors and can be worth up to $1,000.

9. 1919-S Mercury Dime

A 1919-S Mercury Dime graded MS66 with “full bands” detail sold for $132,000 at auction. The “full bands” refer to the distinct separation between the bands on the fasces on the reverse side, indicating a strong strike.

10. 1873-CC Seated Liberty Dime (No Arrows)

The 1873-CC Seated Liberty Dime without arrows is one of the rarest dimes, with only a few known to exist. One of these coins sold for over $1 million at auction.