unused Block of Four South West Africa 1931 Revenue 3d. (4), 6d. (2), 1/- (4), 2/6d., 5/- (2), 10/- (2) and 20/- (2), marginal blocks of four from various printings, all without gum and with details of the printings pencilled in the margins. A fine group ex the Bradbury Wilkinson archive