NIGERIA 1921-32 set of seven to 10s Specimens, SG19s/29sNigeria 1921 32 2d chestnut, 3d bright violet, 4d black and red pale yellow, 1s black emerald, 2s6d black and red blue, 5s green and red pale yellow, 10s green and red green, Script watermark. All overprinted 'SPECIMEN', the 'set' of seven values with type D16 overprint, distributed between 1923 and 1927, each in a horizontal pair (10s rejoined), SG19s 29s. A fine and fresh mint set with large part original gum to original gum. A couple of