6c Carmine, I. Grill (137A). Bright color, clearly defined grill easily discernible from the front of the stamp, blue halved-circle cork cancel

EXTREMELY FINE GEM USED EXAMPLE OF THE 1870 6-CENT NATIONAL BANK NOTE COMPANY ISSUE WITH AN I GRILL AND A BLUE CANCEL. A BEAUTIFUL STAMP.

With 2016 P.F. certificate (XF 90). By way of comparison, only three grade 90 in the P.S.E. Population Report which is the highest awarded. Scott Catalogue lists but does not price this issue with a blue cancel. Scott Retail as normal cancel

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