Help! I have a 1920 w something Liberty Mercury Dime, whats the value?

A question from a curious person about their Mercury Dimes:

I also have a 1936 and several 40, 41′s, 43′s, 44′s and 45′s. what would be the value of such coins?

Please help! Thankyou,
Liz
So most of them are in good condition and have not been cleaned and most of them do have a mint mark. either s or d. does that bring any more value to them?

is there such thing as a 1945 W Mercury dime and how much is it worth?

A question from a curious person about their Mercury Dimes:

I found one of those and where the coins usually says D,P,Or S it said W… how much is that worth