Niger Coast 1893 ½d on 2½d purple/blue, SG25Niger Coast 1893 (Dec) 'Half Penny' on 2d purple blue, type 8 surcharge in vermilion, Old Calabar provisional, SG25. A very fine mint example with original gum. A very scarce stamp, particular in such quality. The main post office of Niger Coast Protectorate was established at Old Calabar in November 1891. Initially, British postage stamps were used. In July 1892, they were overprinted with "BRITISH PROTECTORATE OIL RIVERS". A pressing need for half