1992-D Doubled Die Reverse WDDR-004

Description

Cross-referenced as Crawford CDDR-001, WDDR-004 of the 1992-D Lincoln Memorial cent carries independent verification through Billy G. Crawford's doubled die reverse overlay analysis system — a cataloging framework that uses precise photographic overlays to measure and document hub doubling on reverse dies. The Crawford cross-reference confirms that two separate attribution authorities examined this die and agreed it represents a genuine doubled die reverse, lending additional confidence to the variety's legitimacy. Crawford's overlay methodology involves superimposing images of the normal (undoubled) design over the variety coin at precise registration, then measuring the displacement vectors between primary and secondary hub impressions — a technique that can quantify both the magnitude and direction of doubling with greater precision than visual inspection alone. For collectors, the dual listing under both the Wexler (WDDR-004) and Crawford (CDDR-001) systems provides two independent lookup paths when researching this variety, and the agreement between the two systems on its classification as a distinct variety strengthens the attribution. Struck at Denver on copper-plated zinc planchets composed of 97.5% zinc and 2.5% copper, weighing 2.5 grams and measuring 19mm.

Attribution History

• Discovered by Joseph Koelling Cross References: Crawford: CDDR-001
• Crawford: CDDR-001; Wexler Variety ID: 1992-D 1¢ WDDR-004
• Expert attribution by Wexler Team

External References