I have a 1925 Liberty dollar, and a 1925 buffalo nickel, both in fair to good grade, both minted 's' - also have a 1900 dime - good condition, looks totally different from any dime I've seen, wasn't able to find any mint letter on it (normal for that year?) - also a red-inked 5 dollar bill. These are things I've held on to for years, and am not really sure where to go to get info on them. Any help would be appreciated! Thanks in advance!