Official Stamps. 1890-91 Issue. Overprint 17-17½mm. Long. ½d. green, variety "o" omitted, fine mint. Scarce. Signed Bloch. S.G. O1a, £800. Photo. . (Image1)

Est. £250-300

Official Stamps. 1890-91 Issue. Overprint 17-17½mm. Long. ½d. green horizontal strip of three, the centre stamp with variety both "i" s omitted, fine mint. Scarce. S.G. O1c, £936. Photo (Image1)

Est. £250-300

Official Stamps. 1890-91 Issue. Overprint 17-17½mm. Long. ½d. green, variety " l" omitted, fine used with part squared-circle datestamp; fine and scarce. S.G. O1d, £900. Photo (Image1)

Est. £250-300

Official Stamps. 1890-91 Issue. Overprint 17-17½mm. Long. ½d. green block of four, the upper right stamp variety overprint double, largely diagonal, and a horizontal pair variety overprint double and diagonal; the right-hand vertical pair of the block with a vertical crease, the pair fine mint. S.G. O1f, £350+ (Image1)

Est. £120-150

Official Stamps. 1890-91 Issue. Overprint 15-16mm. Long. ½d. green marginal block of four from the foot of the sheet, [3-4, 9-10], variety overprint double, one diagonally, fine mint with the stamps remaining unmounted. A rare multiple. BWISC Encyclopaedia Setting 2. S.G. O2a, £3,200+. Photoprovenance:. Christie's Robson Lowe, January 1986 (Image1)

Est. £1,200-1,500

Official Stamps. 1890-91 De La Rue Issue. Specimen Stamps. ½d., 1d. and 2d. horizontal pairs, each overprinted "specimen" (D12), fine mint. Scarce multiples. S.G. O3-O5, £300+ (Image1)

Est. £120-150

Official Stamps. 1890-91 De La Rue Issue. Cover. 1897 (27 Feb.) Public Works Stores OHMS envelope (227x100mm.) from Kingston to the Turks Islands, bearing 1d. rose strip of six cancelled by four datestamps and with arrival datestamp (3.3) below; two folds clear of the adhesives and a couple of other minor imperfections though a rare franking. Photo (Image1)

Est. £200-250