50c Red Violet (517). Mint N.H., massive margins and mathematically perfect centering, brilliant color on fresh paper

EXTREMELY FINE GEM. THIS SUPERB MINT NEVER-HINGED EXAMPLE OF THE 50-CENT 1917 ISSUE, SCOTT 517, HAS ACHIEVED THE ULTIMATE GRADE OF GEM 100 JUMBO FROM P.S.E.

With 2003 P.F. and 2007 P.S.E. certificates (Gem 100 Jumbo; unpriced in SMQ above the grade of 100, SMQ $3,250.00 as 100). This is the highest grade possible on the grading chart and it is shared by no others

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