Postage Due Mail. 1937 (Feb 17) Cover from Thika, Kenya to the Gold Coast franked 50c with manuscript "T25" and 21/2d, backstamped at Khartoum and Accra, the 21/2d charge collected by Gold Coast 1/2d postage stamp + 2d postage due tied by Accra datestamps. Accra had presumably run out of 1/2d postage due stamps by this date. Very unusual. Photo on Page 160. (Image1)