Lot 938 o
Airmail, 1923, 16¢ dark blue, exceptionally well centered within beautifully balanced margins, deep rich color on brilliant white paper, duplex cancel, a Superb used gem; with 2015 P.S.E. certificate Graded (Superb 98, SMQ $500), only one graded higher at 98J.Scott Nos. C5 $30.