SG 75a, 76, 77b. 1938 Airs set. Cert. SM.

Sudan 1938 King George VI Airs.  3p. on 3 1/2p. black and violet.  3p. on 7 1/2p. green and emerald and 5p. on 10p. brown and greenish blue.  Variety, ‘Perf. 11 1/2 x 12 1/2’.  Superb mint condition.  Royal Philatelic Association Certificates Numbered 120892, 120893, 120894 (1982).  EXCEEDINGLY RARE.