50c Violet (421). Lightly hinged, radiant color on post-office fresh paper, mathematically perfect centering

EXTREMELY FINE GEM. THIS BEAUTIFUL EXAMPLE OF SCOTT 421 HAS BEEN AWARDED THE GRADE OF GEM 100 BY P.S.E. -- THIS IS THE HIGHEST GRADE AWARDED TO DATE.

With 2001 P.F. and 2007 P.S.E. certificates (Gem 100; unpriced in SMQ above the grade of 98, SMQ $2,500.00 as 98). This is the only example to achieve this exalted grade, which is the highest awarded in any condition category

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