1940-S Repunched Mintmark RPM-001

Description

Holding the premier RPM position for the 1940-S Mercury Dime, RPM-001 documents an S/S repunching where the secondary S is displaced to the north. This variety carries a Fivaz-Stanton cross-reference as FS-501, placing it in the Cherrypickers' Guide — the widely used attribution system for varieties most sought by collectors. The FS-501 designation signals meaningful market recognition and demand. At the San Francisco Mint, a die technician struck the S punch into the working die, then repositioned the punch higher and struck again, embedding a second S northward from the original. Weinman's Winged Liberty Head had been in production twenty-four years by 1940, struck in 90% silver at 17.9mm. The mintmark sits on the reverse near the fasces, and northward repunching appears as a secondary serif or extra thickness at the top of the S. Attribution requires comparison against known die markers documented in the RPM reference alongside the FS-501 listing.

External References