What do letters of all coins mean?

Question

C-

CC-

D-

O-

P-

S-

W-

Plain-

Answer 1

The letters stand for the mint where the coins were minted...No mint mark usually stands for the Philadelphia mint, D is for Denver, S is for San Francisco, O is for New Orleans, (closed just before the civil war), CC is for Carson City, and P is for Philadelphia....The mint mark is a determining factor as to the value of a lot of coins...A year date may have been minted at as many as four different mints, and one mint may have only minted a small number of the total.....In older coins, there are many variations of mint marks that make them valuable, such as double die mint marks, in which a die was not aligned properly, and the mint mark got punched twice, slightly offset...One of the more famous of the doubles is a San Francisco "S" die, that was somehow sent to the Denver mint, and the "D" was punched over the "S".

Answer 2

C Charlotte mint

CC Carson City, Nevada Mint

D Denver Mint (normal circulation)

D Dahlonega Georgia mint (Gold coins 1838 -1861)

O New Orleans mint

P Philadelphia Mint

S San Francisco Mint

Plain Philadelphia Mint

W West point Mint(not circulated coins)