There are no 1960 proof sets, only proof-like sets.
There were three different white cardboard holders for these sets in 1960.
Beware when buying pre-1961 PL sets the cellophane is very fragile, most sets have been tampered with.
There were three different white cardboard holders for these sets in 1960.
Beware when buying pre-1961 PL sets the cellophane is very fragile, most sets have been tampered with.
"Dipping" is not considered cleaning...
-from PCGS website
-from PCGS website




















