4-Silver US Proof Sets (1995s, 1996s, 1997s, 1998s) 90% Silver With COA 31 March 2025March 31, 2025admin4-silver1995s, 1996s, 1997s, 1998s, 4-silver, proof, sets, silver Sets have been in storage for years & are in original boxes from mint! All have “certification of authenticity enclosed”. 90% silver 50,25,10 cent coins.