Part III. Die Installation Errors:
Transitional Reverse (Minor temporal mismatches):
1964-D quarter with reverse of 1965
Definition: Subtle differences in design details can differentiate dies used in different years. Whether accidental or purposeful, obverse dies are sometimes mated with a reverse die meant for a previous or subsequent year. These are often called “transitional reverses”. Well-known examples include 1992(P) and 1992-D Lincoln cent obverses mated to a 1993 reverse.
Shown below are the three reverse styles found among 1964-D quarters: Type A (normal), Type B (meant for proof dies), and Type C (meant for use in 1965). Type C is the only transitional reverse. Types A and B are included for reference purposes, as they represent a different type of die swap.
