1973 Variety WMHR-001

Description

With WMHR-001 on the 1973-P Washington Quarter, the SD-1 Working Master Hub Reverse variety enters its sixth consecutive year of documentation, catalogued under CONECA SD-1-R-II-C+VI. The persistence of this hub through 1973 demonstrates that master hub tools in the 1968-1974 era were capable of yielding usable working dies across many production cycles. Every working die made from this hub inherited the same center-directed spread on QUARTER DOLLAR and the lower wreath, and the same pointed leaf to the left of the arrowheads that serves as the SD-1 identification key. For numismatists working through the WMHR census, the 1973-P entry is part of the continuous thread of attribution linking all SD-1 business strike quarters from Philadelphia across the six-year span. The 1973-P Washington Quarter was struck in copper-nickel clad at the Philadelphia Mint. Cross-reference: CONECA SD-1-R-II-C+VI; WMHR-001, 1973-P.

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 1974 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 1974 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: 1973 25¢ WMHR-001
• Expert attribution by Wexler Team

External References