1977-D Variety WMHR-001

Description

The Denver Mint counterpart to the Philadelphia 1977 WMHR-001, this 1977-D Eisenhower dollar carries the same master hub doubling — centripetal spread on ONE DOLLAR, the designer's initials, and the lunar craters — that has been documented across the 1974, 1977, and 1978 production years from the same original doubled master hub. Cross-referenced as CONECA: SD-2-R-II-C+VI and Wexler Variety ID: 1977-D $1 WMHR-001, this variety demonstrates that master hub doubling propagates identically to both Philadelphia and Denver working die inventories, as both facilities receive their working dies from the same centralized master hub and die production infrastructure. Frank Gasparro designed the reverse featuring the Apollo 11 eagle landing on the Moon with Earth visible in the background — a design that returned for 1977-1978 after the Bicentennial reverse interruption, and the lunar craters provide particularly textured surfaces where master hub doubling manifests as subtle displacement of the irregular topographic detail. Denver struck approximately 32.98 million Eisenhower dollars in 1977, a considerably higher output than Philadelphia's 12.60 million for the same year. The multi-year, multi-facility documentation of this single master hub doubling event provides one of the most comprehensive case studies available for understanding how the hierarchical die manufacturing system propagates characteristics from a single source tool through the entire production chain. By 1977, the cumulative wear through master die, working hub, and working die stages would have attenuated the doubling's clarity relative to the 1974 first-use specimens, and the Denver die shop's specific working hub and working die wear profiles may produce subtly different visual presentations compared to the Philadelphia counterpart despite originating from the same master hub. Collectors should examine ONE DOLLAR and the lunar craters under 15-20x magnification, comparing against confirmed 1974-D examples to gauge the wear-related attenuation.

Attribution History

• Discovered by Various Cross References: CONECA: SD-2-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 1974, 1977, and 1978. 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.
• CONECA: SD-2-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 1974, 1977, and 1978. 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.; Wexler Variety ID: 1977-D $1 WMHR-001
• Expert attribution by Wexler Team

External References