1900 (April): 2 s. 6 d. green & ultramarine, a used block of four, the first stamp with slightest of fading and the fourth with one short perf. at base, neatly cancelled by 'Northern Nigeria' cds's in black (Oct 3, 1902). An exceptionally scarce stamp in a multiple Gi = £ 3'400.

1902 (July 1): 1 s. green & black, wmk. Crown CA, an unused Imprimatur / Colour Trial Imperforate horizontal pair, touched into frame at right and with slight grease spots, large part og. Despite imperfections, a scarce pair.

1903: De La Rue Die Proof for £ 25 value, with 'Northern Nigeria' and Duty Plate printed in black on glazed white card, handstamped BEFORE / HARDENING in black and dated '16 OCT. 03' in blue. Scarce and fine.

1910/11: Definitive set of eleven complete, wmk. Multiple Crown CA, all overprinted SPECIMEN in black, the 2½ d. with slight rub and the 2 s. 6 d. with one toned perf., otherwise fresh and fine, large part og. Gi = £ 350.

1900: Cover mailed prior to issue of Southern Nigeria adhesives, prepaid in cash with "Paid 1d. C.F" in red manuscript, struck with "BONNY RIVER" code A cds (April 6) in black. Reverse with Manchester arrival cds (April 26). Creased, some wear at edges but rare.rnProvenance: Collection W.C. Hinde; Collection Col. J.R. Danson, RL, London, 10 March 1971, ex lot 1830.

1902: Stampless Campaign cover to Rosscarbery, Co. Cork, Ireland endorsed "O.H.M.S" and "On Active Service, No Stamps available", and endorsed "J.C. Whitley / D.M.O" (District Medical Officer) struck with "OPOBO RIVER" code A cds (July 21) in black. Reverse with Rosscarbery cds of arrival (Aug 18). Probably from a member of the Field Hospital remaining after the Aro Campaign. Closed tears at top and on flap but scarce.

1900: De La Rue Die Proof for the vignette / head-plate with uncleared surround and horizontal notch marks at sides, printed in black on surface glazed white card, dated "21 JUL 00" in blue and struck with "BEFORE / HARDENING" in black. Superb and very rare.

1900: De La Rue Die Proof for the vignette / head-plate with uncleared surround, printed on thick surface glazed white gummed paper (53 x 58 mm.), struck in deep green with notch mark at left of frame and partially so at right, with Printer's vertical flaw behind the Queen's head. A rare and most attractive Proof.rnProvenance: Collection W.C. Hinde.rn                    

1900: De La Rue Die Proof for the vignette / head-plate with uncleared surround, printed on thick surface glazed white paper with gum (54 x 63 mm.), struck in mauve. Extremely rare: believed unique in this colour.rnProvenance: Collection W.C. Hinde; Collection Col. J.R. Danson, RL, London, 10 March 1971, ex lot 1836.

1901 (March): The first definitive set of nine values, wmk. Crown CA, all overprinted SPECIMEN in black, 1 s. without gum, otherwise fresh and fine, large part og. Gi = £ 250.

1900 (April 3): De La Rue photographic Essay for proposed 10 shilling value, using the von Angeli Victoria head-plate, imperforate on card (89 x 114 mm.) marked "C" at upper left, dated in manuscript "April 3rd, 1900" with "Dupl." at base; the design without "Postage" or "Revenue". Illustrated in the "De La Rue Collection" edited by Frank Walton RDP on page 6067, this example showing hand-painted additions in black. The sole recorded example...

1900 (July 30): De La Rue composite Essay for the 10 s. value, with green head-plate inserted within blue & pale blue imperforate frame showing country legend, Duty Plate and "Postage" and "Revenue", with tracing paper swatch showing proposed designs for the 2 s. 6 d. Duty Plate with three different versions hand-painted in Chinese white on brown background. Dated at top right "July 10th 1900" with "Dupl. copies submitted: Head: Green (...