1999D-1DER-004T Trail Die Reverse

Description

Fourth reverse trail die variety documented for the 1999-D Lincoln Memorial cent, 1999D-1DER-004T records a misalignment event where light trail lines extend from the top left corners of the motto inscription letters, offset at 320 degrees from the normal design position. The Trail Dies attribution service documented this as a Stage B mid-die-state (MDS) variety, indicating the trail line characteristics were observed at an intermediate point in the die's service life. Additional die markers include a die gouge located near the rim below the CE of CENT on the reverse, providing a secondary diagnostic for confirming the correct working die independent of the trail line phenomenon. This variety was discovered by Rock Hasenberg, a contributor to the Trail Dies documentation effort. Trail dies occur when the anvil die and hammer die in a coining press are slightly offset from their ideal concentric alignment. As one die's design elements extend slightly beyond the boundary of the opposite die's collar opening, they create faint impressions — trail lines — that appear as ghostly extensions of the affected design features on struck coins. The 320-degree offset direction indicates the trail lines extend from the upper left corners of the motto letters in a roughly northwest direction when the coin is oriented with the reverse upright. Denver struck approximately 6.36 billion Lincoln Memorial cents in 1999, an enormous production volume that increased the statistical probability of press alignment anomalies. Frank Gasparro's Lincoln Memorial reverse, with its detailed architectural representation and multiple inscriptions, provides numerous straight-line reference elements where trail line displacement becomes detectable. The light intensity classification means these trail lines require careful examination under 15-20x magnification with appropriate lighting to resolve against the field, and collectors should focus on the upper left extremities of the motto letters where the trails originate.

Attribution History

• Discovered by Rock Hasenberg
• Expert attribution by Trail Dies

External References