1931-67 Overprints on Stamp Duty Arms Types, comprising Single Wmk Cowan Paper 2/6d - £1 M, and Multiple Wmk 2/6d blocks of 4 (Wmk Upright) (2), 2/6d and 5/- singles and 5/- block of 4 Wmk Inv, and 10/- (2), all fine with large part OG, blocks are MUH. SG cat £350+ (20)