1968-S Variety WMDO-001

Description

Designated WMDO-001, this 1968-S Proof Roosevelt Dime carries a Master Die Doubling variety on the obverse — a type of hub doubling that occurred at the master die or hub level rather than on an individual working die. Because the doubling is imparted to the master die itself, every working die produced from that master inherits the same doubled image, meaning WMDO-001 appears on all coins struck from any working die derived from the affected master. This distinguishes master die doubling from conventional doubled dies, which affect only a single working die and are therefore much scarcer on a per-die basis. Cross-referenced as Wexler 1968-S 10-cent Proof WMDO-001, the variety appears on Proof strikings from the San Francisco Mint — the facility that assumed exclusive Proof production beginning in 1968 after a brief hiatus during the coinage shortage years. Collectors should be aware that master die doubling varieties, while legitimate and cataloged, are inherently more common than working-die doubled dies because the doubling propagates across all dies from the affected master, resulting in a larger population of affected coins relative to the total mintage.

Attribution History

• s:; Wexler Variety ID: 1968-S 10¢ Pr WMDO-001
• Expert attribution by Wexler Team

External References