5923270 A member of the Northern Nigeria Regiment balances an artillery wheel on his head, 1907 circa (lantern slide) by Unknown photographer, (20th century); National Army Museum, London; (add.info.: A member of the Northern Nigeria Regiment balances an artillery wheel on his head, 1907 circa. Photograph, West Africa, 1907 circa. The Northern Nigeria Regiment was part of the Royal West African Field Force (RWAFF), a multi-battalion unit formed by the British Colonial Office in 1900 to garrison the West African colonies of Nigeria, Gold Coast, Sierra Leone and Gambia. The RWAFF?s artillery units were armed with light field guns that could be dismantled and transported by men or animals. From a collection of 41 lantern slides, collected between 1907-1911, by Lieutenant H R S Massy, Royal Artillery, attached to the Northern Nigeria Regiment, West African Frontier Force.); by National Army Museum .