Auction 333-341 Nigeria, Cameroon, Sudan & Worldwide Postal History - Day 4

1912/22: Great Britain ½ d. green in a used "O20" corner Control strip of three cancelled ASCENSION code B cds's (Aug 7, 1920) in black with part of original piece at top, 1 d. scarlet on part piece tied cds (Aug 7, 1920) and 1½ d. red-brown superbly tied to small piece (27 Oct, 1922) in black. A fine group, the Control strip being rare Gi = £ 400+.