used Block of Four A used range of blocks (23) with ½d. (2), 1d. (2), 1½d. (8, including a block of six), 2d. (6, including two blocks of six), 3d. (2), 4d. (a block of six) and 6d. (2, including a vertical block of six); postmarks include Bikita, Enkeldoorn, Gwelo, Heany, Livingstone, Mazabuka, Que Que, Selukwe, Sesheke and Shabani; a few minor faults; also 1922 cover from Abercorn to England bearing a single 2d., minor staining at top, the cover backstamped Mporokoso, Ndola and Livingstone; a very useful lot