In 1972 the type C reverse was used on all Philadelphia business strikes and primarily on the Denver issues. Breen reports that a few of the Denver issues have been reported with the type B reverse and these are rare. The type B reverse was used exclusively on the S-mint coinage.
Mintage:
Philadelphia | Denver | San Francisco |
215,048,000 | 311,067,732 | 3,260,996 |