1955 Doubled Die Obverse: The 1955 Doubled Die Obverse is a well-known variety among Roosevelt dimes.
1965 "No-S" Proof Dime: In 1965, the San Francisco Mint accidentally omitted the mint mark ("S") on some proof coins, including Roosevelt dimes.
1982 No-P Mintmark Dime: In 1982, the Philadelphia Mint inadvertently failed to include the "P" mint mark on some Roosevelt dimes.
Full Bands (FB) Designation: Collectors often seek Roosevelt dimes with full bands (FB) on the reverse (back) of the coin.
Proof Roosevelt Dimes: Proof Roosevelt dimes, which are specially struck coins with polished dies and often feature mirror-like surfaces, are popular among collectors.
These are just a few examples of Roosevelt dimes that collectors may be interested in. As with any coin collecting pursuit, it's essential to research and educate yourself about the various varieties, errors, and factors that can affect a coin's value and desirability.