1955-1956-1957-1958-1959-1960-1961-1962-1963-1964 Proof Sets, Unopened Envelopes

  
1 - 1963 US Mint SILVER Proof Set, in all OGP, in UNOPENED ENVELOPE, Common. 1 - 1964 US Mint SILVER Proof Set, in all OGP, in UNOPENED ENVELOPE, Common. These sets were acquiredyears ago, sealed by the Mint, and getting harder to find in UNOPENED state.