The U.S Mint is celebrating the 50th anniversary of the Apollo 11 NASA Moon landing. These coins are perfect for those interested in space exploration, as well as people who appreciate the historical impact of this event from a national and global perspective. This coin has a special designation, signed by U.S. Mint Sculptor-Engraver, Charles Vickers. This coin has a population of only 20 in this label. Since Charles Vickers is no longer signing labels, the population of this coin in this label will never change. This coin was struck from 26.73 g of .999 fine silver at the Philadelphia Mint, which is represented by its famous "P" mintmark.