Here are just a few of the main errors that can be found sorting through half dollars.ġ972 S Half Dollar Struck on Cent Planchet - one of the many instances of the mint using the wrong planchet for this year. This new blend required new planchets to be created, and because of this there are many instances of Half Dollars from 1971, and 1972 being struck on the wrong planchet. Just 2 years after the mint switched from 40% silver to a blend of 91.67% Copper 8.33% Nickel. Errors include obverse die breaks, struck on nickel planchet, struck on quarter planchet, off center strikes up to 70%, double strikes, and clipped planchets Most Valuable Errorsġ972 was another rough year for the United States mint. These coins are a copper-nickel composition, being a nickel jacket over a copper core. Anything after 1970 contains no silver, with the exception of errors listed below.
This was only the second year that the US Mint issued Kennedy Half Dollars in a non silver state. The mint mark for the 1972 Kennedy Half Dollar is on the Obverse/Front. 3.2 million 1972 Proof Kennedy Half Dollars were minted here at eh San Francisco mint.
