10c Black, Double Transfer Ty. A (2-A). Position 1R, large to huge margins incl. part of adjoining stamp at right and part of sheet margin at left, intense shade and proof-like impression, red New York square grid cancel struck at top leaves double transfer clearly visible, tiny pinhole at top of Washington's head, an utterly negligible flaw considering the Extremely Fine appearance of this scarce double transfer position, ex Knapp, with 2006 P.F. certificate

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