1957-D Repunched Mintmark RPM-001

Description

Holding the primary repunched mintmark designation for the 1957-D Franklin half dollar, RPM-001 documents a D over D rotated counterclockwise — a diagnostic where the initial mintmark impression was placed with a slight rotational offset before the final punch corrected the alignment, leaving traces of the first strike visible beneath or alongside the accepted position. John R. Sinnock's Franklin half dollar design, which ran from 1948 through 1963, placed the D mintmark on the reverse above the Liberty Bell beam, a location where the hand-punching process naturally introduced positional variations from die to die. Denver struck approximately 19.97 million Franklin half dollars in 1957, a healthy production volume that required numerous working die pairs and increased the statistical opportunity for mintmark placement anomalies. Cross-referenced as FS-501 in the Cherrypickers' Guide to Rare Die Varieties — the standard Fivaz-Stanton catalog number for repunched mintmark varieties — RPM-001's inclusion in that authoritative reference elevates it above undocumented RPM varieties and provides collectors with published attribution criteria. The counterclockwise rotation of the underlying D impression means the initial punch landed with the letter tilted slightly to the left relative to vertical, and the correcting second punch straightened the mintmark, leaving the rotated shadow visible under magnification. Repunched mintmarks on Franklin half dollars are relatively scarce compared to Lincoln cent or Jefferson nickel RPMs, making documented examples like this FS-501 listing particularly valued by specialists who collect the series by variety. Examination should focus on the D mintmark above the bell beam under 10-15x magnification, looking for the rotated secondary impression emerging from beneath the primary letter at an angle inconsistent with normal striking artifacts.

External References