wow sure is confusing with wam and cam when each site you visite says differently nerve wrecking lol. thanks for the imput Abe .
If you find a 1992, 1992-D, 1998-S, 1999-S with a close AM, they are the ones you want. If you find a 1998, 1999, 2000 wide AM, they are the ones you want. Personally I've started checking every penny from 1992 to 2008, just in case there is a new one nobody has found yet.
Yes. The CAM was intended for the business strike coins and its appearance on a proof coin means that someone prepared the wrong die and then shipped it to the San Francisco facility. On the other hand, the WAM was intended for the proof coinage and its appearance on a business strike coin means that someone either grabbed the wrong die OR a still useable proof die was returned to the Philadelphia facility and intentionally used in the business strike presses. Proof Dies are not ALWAYS the same as the business strike dies since proof coins are minted specifically for collectors. Many collectors make a point of examining the differences between proof coins and their business strike counterparts.