cover POSTAL STATIONERY: 1887-1950 selection with Niger Coast including 1892-93 1d. card used, 1893 registered envelope unused and 1894 unused (4) and used; Nigeria registered envelopes 1923-37 unused (3), 1937-51 "SPECIMEN" (2), unused and used (2), air letter sheets; Lagos cards (7) and Southern Nigeria including "SPECIMEN" and used; a clean lot. (51)