Mercury Dime – (D,S) Reverse to the left of the bottom of the faces. Roosevelt Dime – (D,S) Reverse to the left of the bottom of the torch. Standing Liberty Quarter – (D,S) To the left of Liberty’s feet on the obverse.
Why are there no mint marks on 1894 Dimes?
For example, in the case of 1894 dimes, having the ‘S’ mint mark adds tens of thousands of dollars to the value of the coin as only 24 were minted. Many American coins lack a mint mark because in the beginning there was only one mint at Philadelphia.