![unused A vertical strip of three from the upper right pane, [47, 53, 59], large part original gum; centre stamp with thinning resulting in light mark on face. Cat. £12,000. Photo](https://www.christies.com/img/LotImages/1999/SKS/1999_SKS_01223_0325_000(115337).jpg?w=1)
Details
unused A vertical strip of three from the upper right pane, [47, 53, 59], large part original gum; centre stamp with thinning resulting in light mark on face. Cat. £12,000. Photo