2c Black Jack, Die I, Trial Color Plate Proofs on India (73TC3).
Six, each in a different color, including Gray Black with geometric trial cancel,
Dull Chalky Blue, Vermilion, Scarlet, Blue Green and Olive Green, last with minor translucency but overall better condition than often encountered with this fragile paper, Very Fine, the trial cancel is found on covers from Washington D.C. and was probably obtained to test the trial color proofs, Scott Retail without premium for the trial cancel which is unlisted
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