1970-D Variety WMHR-001
ErrorDescription
WMHR-001 on the 1970-D Washington Quarter captures the SD-1 Working Master Hub Reverse doubling on a Denver Mint business strike in the third year of documented multi-mint coverage for this hub. Catalogued under CONECA SD-1-R-II-C+VI, the variety reflects the reality that dies for both Philadelphia and Denver business strikes were produced from the same master hub tooling, so the pointed-leaf diagnostic and the center-directed spread on QUARTER DOLLAR and lower wreath appear identically on Denver coins as on Philadelphia coins from the same hub generation. The individual working dies used at Denver will carry their own localized die markers — scratches, gouges, and chips specific to each die — but the hub-derived doubling is invariant. The 1970-D Washington Quarter was struck in copper-nickel clad at the Denver Mint. Cross-reference: CONECA SD-1-R-II-C+VI; WMHR-001, 1970-D.
Attribution History
- Discovered by Various Cross References: CONECA: SD-1-R-II-C+VI Comments: Because this was a master hub it was intended to be used over a period of several years. Working dies with the exact same doubling are known to exist for the years 1968 through 1972 from all three Mints including proof coins. Differences in the appearance of the doubling will result from master hub wear, master die wear, working hub wear, working die wear, as well as coin wear. A second similar doubled master hub exists for this time period with the main difference being the leave directly to the left of the arrowheads. On the second doubled master hub that leave is rounded at the top.
- CONECA: SD-1-R-II-C+VI Comments: Because this was a master hub it was intended to be used over a period of several years. Working dies with the exact same doubling are known to exist for the years 1968 through 1972 from all three Mints including proof coins. Differences in the appearance of the doubling will result from master hub wear, master die wear, working hub wear, working die wear, as well as coin wear. A second similar doubled master hub exists for this time period with the main difference being the leave directly to the left of the arrowheads. On the second doubled master hub that leave is rounded at the top.; Wexler Variety ID: 1970-D 25¢ WMHR-001
- Expert attribution by Wexler Team
External References
Community & Reference
Related Errors
More Master Die Doubling Reverse Errors
Collector Essentials
Tools for examining and preserving error coins and die varieties.
10x-20x Jeweler's Loupe
Essential for examining die varieties, doubled dies, and RPMs
Cherry Picker's Guide
The definitive reference for U.S. error coins and die varieties
2x2 Coin Flips & Holders
Protect and organize your finds with archival-quality holders
USB Digital Microscope
Capture detailed images for documentation and community submissions
As an Amazon Associate, NumisDex earns from qualifying purchases.






