unused Block Larger Than four $5 on 6c. scarlet, a lower right corner block of six (3x2) with plate number; crease in margin otherwise fine mint. S.G. J30, £300+

Details
unused Block Larger Than four $5 on 6c. scarlet, a lower right corner block of six (3x2) with plate number; crease in margin otherwise fine mint. S.G. J30, £300+