unused Block Larger Than four ½a. Plate II imperforate, ultramarine complete sheet of twenty-four without gum; fine and very rare. B.P.A. Certificate (1966)
unused Block Larger Than four ½a. Plate II imperforate, ultramarine complete sheet of twenty-four without gum; fine and very rare. B.P.A. Certificate (1966)
unused Block Larger Than four ½a. Plate II imperforate, ultramarine complete sheet of twenty-four without gum; fine and very rare. B.P.A. Certificate (1966)
