NIGER COAST 1893 'HALF-PENNY' on 2½d purple/blue, SG121200. 00 Niger Coast 1893 (Dec) 'HALF PENNY' on 2d purple blue, type 4 surcharge in vermilion, Old Calabar provisional, SG12. A fresh and fine mint example with large part original gum. A rare stamp, hardly ever seen in unused condition. 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