The 1956 US Proof Coin Set is a valuable collection of silver coins from the United States, minted in Philadelphia. This set includes coins with a fineness of 0.9 and struck in proof quality, making them highly desirable for collectors. Each coin is encased in a blue plastic holder, ensuring their preservation and authenticity. This set is a great addition to any coin collection for those interested in US coins from the mid-20th century.
