This 1958 United States 90% Silver Proof Set is a must-have for any coin collector. The set includes all the coins from the set in their original packaging, making it a complete collection. The coins are uncirculated and have not been graded, making them an excellent addition to any collection. The set was struck in Philadelphia and has a fineness of 0.9, making it a valuable addition to any collection. The coins are uncertified, but their value is undeniable. This set is a great way to commemorate the 1958 Olympics and will make a wonderful gift for any coin collector.