2007D-1DER-001WS Trail Die Reverse

Description

Representing the first reverse trail die variety documented on the 2007-D Lincoln Memorial Cent, designation 2007D-1DER-001WS from Trail Dies carries Stage B die markers across both obverse and reverse surfaces. The obverse, in Mid Die State, presents two die dots between the digits of the date — tiny raised specks on struck coins that correspond to small pits or punctures in the die's date area, providing a quick obverse attribution checkpoint that can be verified without high magnification. On the reverse, also in Mid Die State, a small die gouge appears in and over the O of ONE, where the gouge straddles the letter boundary and extends into the adjacent field. Trail die errors represent a category of striking variety where the die and planchet experience relative lateral motion during or immediately after the impression stroke, causing the raised design features of the die to drag across the already-struck coin surface and leave behind shallow, offset secondary impressions that echo portions of the primary design. This mechanism distinguishes trail dies from doubled dies (which originate during die manufacturing) and from machine doubling (which produces flat, shelf-like secondary images without the true design depth of a hub-doubled impression). The 2007-D Lincoln Memorial Cent was struck at the Denver Mint in copper-plated zinc composition at 2.5 grams, within the penultimate full year of Memorial reverse production before the 2009 Bicentennial redesign. As the first cataloged trail die reverse for the 2007-D date, this variety establishes the baseline entry and the "001" designation indicates its primary position within the sequential Trail Dies registry for this date-mintmark combination.

Die Markers

• Stage “B”, obverse is MDS – two die dots are seen between the digits of the date.
• Reverse is MDS – small die gouge in and over the O of ONE.

External References