unused Block Larger Than four -- ¼a. ultramarine unused block of eight (4x2), the left-hand block of four printed on reverse of paper, fine and rare. S.G. 26, 26b, unpriced | Christie's

Lot 571

571

unused Block Larger Than four -- ¼a. ultramarine unused block of eight (4x2), the left-hand block of four printed on reverse of paper, fine and rare. S.G. 26, 26b, unpriced

Details

unused Block Larger Than four -- ¼a. ultramarine unused block of eight (4x2), the left-hand block of four printed on reverse of paper, fine and rare. S.G. 26, 26b, unpriced