Mafeking. ONE OF ONLY FOUR RECORDED 1900 Serif 2s on 1s green, Mafeking April 3 1900 cds, small corner crease at lower left and a little discolouration, still a fine looking example of this very rare stamp, this being only the 4th example discovered, a rarity of Mafeking and South African philately (SG £38'000) (Image)