Vintage United States Mint Proof Sets – Original Packaging Lot This listing is for a lot of vintage U. Mint Proof Sets, all housed in their original government envelopes and original sealed cellophane packaging, exactly as issued by the U. ? IMPORTANT – PLEASE READ CAREFULLY. ? The YEAR for each proof set is printed on the CORNER of each Treasury Department envelope. Please refer to the photos closely. ? There is NO 1962 set included in this lot. ? 1961 is a DOUBLE SET in this lot. One 1961 Philadelphia Mint. One 1961 Denver Mint? What’s Included. Multiple vintage U. Proof Sets. Each set includes. Lincoln Cent. Jefferson Nickel. Roosevelt Dime (90% Silver where applicable). Washington Quarter (90% Silver where applicable). Franklin or Kennedy Half Dollar (90% Silver where applicable). Original U.