How much was the rare dime sold for at the recent sale?
In what year was the coin originally minted?
Where was the coin produced?
What is a mint, according to the track?
What makes this dime extremely rare?
Who inherited the dime before it was sold?
How many dimes without the " S " mark are known to exist from the 1975 proof set?
Approximately how many special proof sets were made in 1975 by the San Francisco Mint?
What did collectors discover about the two dimes from the set?