The John Wilks British East Africa: 1890-95 I.B.E.A. Co. Definitives: Bradbury, Wilkinson file reference stamps, a unique assembly originally retained by the printers, all in fine ungummed marginal blocks of four comprising 1890 printing 1/2a., 1a., 2a., 4a. (both colours), 8a. blue, 1r. (both colours), 2r., 3r., 4r. (2) and 5r. (2), 1891 printing 3a., 41/2a., 1892 printing 21/2a., 1893 printing 1/2a., 21/2a., 3a., 41/2a., 1895 printing 1/2a., 1a., most handstamped "SPECIMEN" in red or green (sometimes very faint), mainly fine. (21 blocks of four) With two B.P.A. certificates, 1991, for twelve blocks, ten included in this lot. Photo. (Image1)

The John Wilks British East Africa: 1890-95 I.B.E.A. Co. Definitives: 21/2a. black on yellow thin paper, first printing, mint horizontal strip of three from the right of the sheet, imperf. between pair at left [columns 8-9], a few shortish perfs. at left otherwise fine and unique. Ex Wood and Krieger. S.G. 7a, cat. £8,000+. •ÈÀThe only recorded example in a strip. Illustrated in "British East Africa: The Stamps and Postal Stationery" by Minns (ed. Krieger, 2006), p. 34. Photo. (Image1)