North Borneo. 1888-92 25c. colour trials (13) all in different unadopted colours; unmounted original gum. Fine and attractive. S.G. 45 (Image1)

Est. £150-250

North Borneo. 1888-92 50c. colour trials (9) each in a different unadopted colour; unmounted mint , fine and attractive. S.G. 46 (Image1)

Est. £150-250

North Borneo. 1894 Pictorial 8c. black and dull purple, perf 13½-14, a left marginal block of four, variety imperforate between vertical pairs, canceled to order with oval of bars, normal slightly ragged perfs, fine. S.G. 74ba, £600 (Image1)

Est. £150-250

North Borneo. 1904-05 '4/cents' on $10 brown, variety inverted surcharge, marginal from the left of the sheet; large part toned original gum, very rare. R.P.S. Certificate (1998). S.G. 157a, £3,000 (Image1)

Est. £1,000-1,500

North Borneo. 1918 (Aug.) "red cross/two cents" 1c. to $10 set of seventeen, mostly fine mint. S.G. 214-34, £1,200 (Image1)

Est. £400-500

North Borneo. 1939 Pictorial set of seventeen to $5, slightly toned, very lightly mounted mint. S.G. 303-17, £1,400 (Image1)

Est. £300-400

North Borneo. 1939-52 mint collection on album pages including 1939 set to $5, 1941 War Taset, 1945 BMA set with additional $2 showing guide mark in "ol" of "dollars", 1947 set, 1950-52 set with both 50c. and Japanese Occupation 1944 1c. to 25c. mint; the last set with a few tone marks, all others fresh and fine. Cat. £2,000+ (Image1)

Est. £300-400