![unused Block Larger Than four 3c. grey mint block of four [21-22/29-30], showing double framelines at left and foot with practically full original gum. Very fine and scarce. A. Diena Certificate. Sass. 15, L.7,500,000. Photo](https://www.christies.com/img/LotImages/1999/SKS/1999_SKS_01212_0217_000(115314).jpg?w=1)
細節
unused Block Larger Than four 3c. grey mint block of four [21-22/29-30], showing double framelines at left and foot with practically full original gum. Very fine and scarce. A. Diena Certificate. Sass. 15, L.7,500,000. Photo