unused Block of Four 6c. on 15c. slate block of four, fine mint (lower pair unmounted). A. Diena certificate (1963). Sass. 3, L.3,750,000+. Photo | Christie's

拍品 2349

2349

unused Block of Four 6c. on 15c. slate block of four, fine mint (lower pair unmounted). A. Diena certificate (1963). Sass. 3, L.3,750,000+. Photo

细节

unused Block of Four 6c. on 15c. slate block of four, fine mint (lower pair unmounted). A. Diena certificate (1963). Sass. 3, L.3,750,000+. Photo