Tanganyika 1917 KGV GEA to 50R Rare Small Plate Imperf Proof Set

1917-21 KGV GEA Ovpts 1c - 50r (SG 45-61). FULL SET OF 15 IMPERFORATE PROOFS in colours as issued on gummed watermarked paper. Superb-VF/M, couple minor wrinkles, neat light prior hinges, a superior set of these. A single pull was taken from specially prepared plates of six impressions. The 3c and 6c do not exist in this form. A spectacular exhibition group of which less than six sets can exist. Superb, rare, particularly as intact group thus. See additional image below.