My first nexus to coins was from an employee of my dad's, who was a committed small business entrepreneur, before it was used as a political wedge status. 1956, in his case. In 1963, he hired a guy who was waaaaay into coins, and introduced my old man to proof sets. Dad ordered 5 1963 sets and he and the other guy carefully mounted one set into a Capital Plastics 5-hole holder, because the pliofilm actually hid most of the beauty of proofs. Dad gave it to me and I was hooked. I have NEVER missed buying the standard proof set since, even when I was "taking a break" from coins in my past. Proof coins (regular set) is THE one constant in my collecting life.