unused -- 20c. dull blue on azure with good margins, without gum; slight discolouration at lower right corner. Rare. Photo | Christie's

拍品 1539

1539

unused -- 20c. dull blue on azure with good margins, without gum; slight discolouration at lower right corner. Rare. Photo

细节

unused -- 20c. dull blue on azure with good margins, without gum; slight discolouration at lower right corner. Rare. Photo