I know about 40/90% coins and the '87P & D, '98S, proofs, NIFC and any S coins but are there any more? I read somewhere that some '74s are keepers. Are there others to look for?
Sonny01
I find 1974 D doubled die halves. Pretty scarce, but they can be found. I sell most of them on feebay. Have gotten up to $19 for one. Better profit than a 90. You have to have a magnifier to spot them. The RUS of trust from the motto is doubled. The red book has a good pic as well.
the only thing I look for are 40/90 %ers. The others are worth only .50 to me. My LCS already told me they aren't interested in any of them, even if they are proofs. Too much time, cost, and effort to try to sell them on Feebay.