Group of 3 US Mint Philadelphia Coin Proof SetsMatthew Bullock Auctioneers4.7(2.1k)US$15(1 bid)Apr 18, 2026
![[12] 1956-1961 U.S. Proof Set Coins (1 of 2)](https://p1.liveauctioneers.com/7261/410098/228045399_1_x.jpg?height=282&quality=70&sharpen=true&version=1773695057)
