Lot
2302 
Airmail, 1988, 36¢ Sikorsky, red, dark blue & black (engraved) omitted, corner margin block of 4, o.g., never hinged, bright and Post Office fresh, Extremely Fine; with 2016 P.S.A.G. Graded certificate (XF 90). Scott No. C119a $10,000.
A GREAT AIRMAIL ERROR RARITY - WITH ONLY TWENTY EXAMPLES EVER ISSUED.
Realized: $2,000