20c Parcel Post (Q8). Deep rich color and proof-like impression on bright paper, beautifully centered with wide and balanced margins, neat strikes of double-oval registry cancels

EXTREMELY FINE GEM. THIS IS THE FIRST UNITED STATES STAMP TO DEPICT AN AIRPLANE. THE EXAMPLE OFFERED HERE IS THE ONLY USED COPY TO RECEIVE THE COVETED SUPERB 98 GRADE FROM THE P.S.E.

With 2007 P.S.E. certificate (Superb 98; SMQ $470.00). This is the highest grade awarded to date, and this stamp is the only example to achieve this lofty grade

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