Air Mail cover 1936 (29 Apr.) S.A. Centenary and Philatelic Exhibition envelope bearing K.G.V 1d. (2) cancelled by Alberton c.d.s. and 2d. tied by Cootamundra c.d.s. with typed message "Adelaide-Melbourne-Cootamundra via C.J. Melrose 'S.A. Centenary Goodwill Flight' per Heston Phoenix plane 'Billing'" and signed by the pilot. 6 covers carried, three over the complete route. Eustis 601