The 1971 US Mint Circulated Set includes 6 coins with a silver composition of 90% each. The set includes coins with denominations of 1 cent, 5 cents, 10 cents, 25 cents, 50 cents, and $1. These coins were struck as business coins in 1971 at the Philadelphia Mint, and are not graded or certified. The set comes in a plastic holder for safekeeping and display. A great addition for collectors interested in US coins from the early 1970s.