2d. to 1, a study of the evolution of the bi-coloured head plates, with 2d. (9), 3d. (8), 4d. (5), 5d. (4), 6d. (7), 8d. (3), 10d. (2), 1/- (5), 2/- (6), 2/6d., (2), 3/-, 5/- (3), 7/6d., 10/-, 1 (2), housed on sheets showing which printings exist in which states; 59 stamps, condition mixed but many scarce items included; also photocopies of the series of articles by Stephen Reah Johnson which appeared in the Rhodesian Study Circle Journal and a diagram showing which stamps were issued in Rhodesia and which were not; a very interesting lot.