In 1975, the U.S. Mint in San Francisco struck nearly three million special proof sets that featured six coins — but the ...

The dime - described as "one of the rarest coins of the 20th century" - was produced by the US Mint in San Francisco. But it is missing a distinctive mark, one of only two dimes made in 1975 known ...

A rare 1975 dime missing its "S" mint mark was auctioned for $506,250. Photo courtesy of GreatCollections Nov. 5 (UPI) --A rare U.S. dime missing its mint mark was auctioned for $506,250 ...

The rare 1975 No S Proof Dime set a new auction record, selling for $506,250 at GreatCollections, with bidders from around the world vying for the coin.

A rare 1975 dime minted in San Francisco was sold for a whopping $506,250 by online auctioneer GreatCollections. One of only two of its kind, the coin holds ...

The coin is a US dime and was produced by the US Mint in San Francisco in 1975. Described on the US Mint's website as "one of the rarest coins of the 20th century", it features a profile of former ...

The coin is a US dime and was produced by the US Mint in San Francisco in 1975. Described on the US Mint's website as "one of the rarest coins of the 20th century", it features a profile of former US ...

The only other known example of the “1975 ‘no S’ proof dime” sold at a 2019 auction for $456,000 and then again months later to a private collector. The mint in San Francisco made more ...

FILE - This undated image provided by GreatCollections shows a 1975 proof set dime mistakenly made without the San Francisco Mint's letter S mintmark. (GreatCollections via AP) TOLEDO, Ohio (AP) — An ...

An extraordinarily rare dime whose whereabouts had remained a mystery since the late 1970s has sold for just over $500,000. The coin, which was struck by the U.S. Mint in San Francisco in 1975 ...