I found a 1981-S SBA while going through my old collection. I have no
idea where it came from. I have a couple of question's:
1. When I look in the Redbook there are 3 listed. A proof
with a clear S, a regular proof and an a non-proof. My coin doesn't
look like a proof to me althought it is in nice shape almost looking
mirrored. Is it safe to assume it is not one of the proofs?
2. The book notes that in 1981 the non-proofs were issued
only in mint sets. Is this true? The reason I ask is that since I
never purchased this coin I'm confused as to how I got it. It's
possible someone gave it to me but I don't know anyone into coins
enough to have ever purchased one. I was very surprised to see it
only issued in mint sets. Until recently, I have never had a coin
that didn't come from change.
Thanks for the help.