1c Washington Coil, Imperforate (1054b).
Strip of four, large margins at top and sides, just in at bottom, Brooklyn N.Y. 1964 machine cancel, slight pink stain mostly in left stamp, creased between the two pairs and center right stamp small internal crease, still Fine appearing and extremely rare used example of this error which may well be unique, with 2014 P.S.E. certificate, unlisted in Scott or Datz as used, Scott Retail as two unused pairs $6,000.00
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