10c Gray Violet, Special Delivery (E11b).
Mint N.H., wide margins and perfect centering, deep rich color on bright paper, Extremely Fine Gem, a superb stamp in every respect, with 2016 P.S.A.G. certificate (100 ogNH), by way of comparison, the P.S.E. Population Report lists only one Scott E11 (and no E11b's or E11c's) at the Gem 100 grade
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