GHANA 1967 (VARIETY) 9NP CHAMELEON AEROGRAMME WITH BLACK AND BLUE SHIFT
9np Chameleon aerogramme, 'IMPERIAL AIR MAIL' upright watermark, with dramatic up shift of black and blue (affecting the aerogramme's dotted lines and inscriptions, and the stamp's country name, outlines and image shading). Unusual. A few insignificant bends otherwise fresh, fine, unfolded and unused. AG9b
