This 3-coin set from the United States Mint is a must-have for any coin collector. The set includes five coins of assorted denominations, all minted in 1963 and struck in Philadelphia. The coins are made of 0.9 fineness silver and have not been circulated, making them an excellent addition to any collection. In addition to the coins, this set also includes the original unopened envelopes in which they were minted. This is a rare opportunity to own a piece of history, and SILVER BULLION. WE bought a box of 100 unopened 1963 Silver Proof sets. And sell them in lots of three sets. With this lot of 3 unopened P/S I will add a. 999 Silver BAR (one gram) and A – 1957 silver certificate with your 3 silver sets. Track Page Views With.