8 US 90% Silver Coins Proof Sets 1956 – 1963 in Original Plastic Whitman Holder #S1897UT. Eight United States Proof Sets. Years Included: 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963. Comes in Old School Whitman Holder Book. Please Note: Book is Old and Imperfect. Expect Rips, Tears and Discoloration. Please See Pictures for the Amazing Sets of Coins You Will Receive.