The Stamps and Postal History of Nigeria and its constituants
On 1 January 1914 the protectorates of Northern and Southern Nigeria were formed to create Nigeria. The first Nigeria stamps were issued on 1 June 1914 and continued until 1932 with many changes in watermark, colours and shades, coloured papers etc., with 4 different types of the £1 top value identified by specialised stamp collectors. The rarest Nigeria stamps are the sideways and inverted watermark errors found on several values of the 1938-51 definitive issue. Of similar rarity but lesser value are the inverted watermarks to be found on the 2d, 5s & £1 values of the 1961 pictorials issue. Postmarks and covers of Nigeria are also very popular and a large number of collectors enjoy this area of Nigerian philately, we recommend “The Postal History of Nigeria” by Edward B. Proud. As always Stanley gibbons catalogues provide the best listings of Nigerian stamps.