Celebrate the Union with this 1974 Hamilton Mint The Official Ingots of the United States complete set of (50). These pristine proof-finish ingots have a weight of one ounce each with a composition of .999 fine silver. Each of our country’s 50 States are represented by a pertinent design, and each ingot bears the date when the represented state was admitted to the Union. With deference to moderate toning, these fifty-year-old ingots present in brilliant uncirculated state and they are housed in their original wood presentation box, with COAs.   Opening Bid $500.