50c Red Violet (517). Mint N.H., deep shade on bright paper, perfectly centered with wide margins, long and full perforations

EXTREMELY FINE GEM. A PHENOMENAL MINT NEVER-HINGED EXAMPLE OF THE 1917 50-CENT PERF 11 ISSUE, SCOTT 517, WHICH IS GRADED GEM 100 BY P.S.E.

With 2007 P.S.E. certificate (Gem 100; SMQ $3,250.00). Only one has graded higher and only three others share this grade, a statistic that has not changed since 2010. This is also the highest grade we have offered in one of our auctions

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