UNOPENED 1964 PROOF SET Sealed US Mint Envelope SilverUnopened Proof Set from 1964 containing 90% silver half, quarter, and dime as well as nickel and penny. While purchasing an unopened proof set in a sealed mint envelope does not guarantee superior coins, the chance of owning rare, high quality specimens translates into these sets earning a market premium above regular opened envelope sets. These sets are way undervalued and set to benefit from the next silver bull market run. Moreover, you will be the first to inspect these coins for rarities and errors that can multiply the value of your purchase significantly. Don't miss out. Get these sets now while prices are ridiculously low! Free Shipping!!! Funds expected within 5 days of auction close.