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Comments: This is the first of two uses of Obverse P2 to strike proof issues. It was later used to strike business strike die marriage OC-3. This is the second of two uses of Reverse PA in 1840. It was later used to strike almost all original proof issues through 1854. |
Obverse P2 The photo below shows the Obverse P2 attribution grid. Obverse P2 can be uniquely identified by its date position, slightly high in the field and level.   1840 Obverse P2 attribution grid
Obverse P2 was used to strike both proof and business strike issues, our die marriages OC-P2, OC-P3, and OC-3.
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Reverse PA Reverse PA is the same die used for almost all original proof issues from 1840 through 1854. The die exhibits unique features on A3. The following photo shows these die markers, possibly created from die rust or just die crumbling due to imperfect die metal. These allow easy identification of the proof die, even on mishandled or lightly circulated examples.  1840 Reverse PA die markers
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