10c Orange, Panama-Pacific (400A). Mathematically perfect centering with huge Jumbo margins, bright color on fresh paper, registry double oval cancel, Extremely Fine Gem, a stunning stamp and superb in every respect, with 2011 P.F. and 2002 P.S.E. certificates (Gem 100 Jumbo; unpriced in SMQ above the grade of 98, SMQ $750.00 as 98), only two other examples have achieved this ultimate grade