United States Half Dollars
The Half Dollar was first minted in 1794 and featured Lady Liberty, Benjamin Franklin, and John F. Kennedy. The coin is still produced and was reintroduced into general circulation in 2022 after years of being available only by directly buying from the mint. The silver content was 89.24% until 1837 when it was increased to 90%. In 1965, the silver content was changed to 40% and remained that way until the 1971 Copper-Nickel Clad coins were minted.