The first dime produced in a U.S. Mint building was struck in 1796. The earliest 10-cent coins pictured Lady Liberty, either in bust or full profile form.
1945 S Micro S Full Band Mercury Dime The 1945 S dime is the only one known to have the Micro S mintmark appear on the reverse side of the coin.
In addition, dimes from this year struck in San Francisco (as this one was) tend to be poorly struck so those with full bands are rare.
1860 Liberty Seated Dime While this change was made to coins minted in New Orleans (O coins) and Philadelphia (no mint mark), coins made in San Francisco remained the same.
More than 600,000 dimes were produced in Philadelphia, so these are not particularly rare. This dime, produced in Philadelphia, is one of over 100 dimes from 1860 certified to be mint state.
1968 No S Roosevelt Dime Proof This is the first proof coin that was mistakenly struck without the mint mark, and only about 12 such coins are known to exist.
1856 S Seated Liberty Dime This was the first year dimes were produced at the San Francisco Mint. With only 70,000 dimes minted, even low-grade coins are rare.