Kenya, Uganda & Tanganyika 1938-54 KG6 imperf working proof of 10c frame in black (equivalent of a block of 4) also showing 10c frame in green (upright & inverted) misplaced central vignette in brown and vignette in black (inverte……Details Below

Kenya, Uganda & Tanganyika 1938-54 KG6 imperf working proof of 10c frame in black (equivalent of a block of 4) also showing 10c frame in green (upright & inverted) misplaced central vignette in brown and vignette in black (inverted) a spectacular item