unused Block Larger Than four 1887 1c. on 2c. rose (Type 28) bottom left corner block of six (3x2) with plate number showing two examples of the the triplet setting, unit 3 with raised "C" and dropped "P", unused with large part to much original gum; some light tone spots on reverse do not detract. This is the largest known block. S.G. 31, #1800. Photo