2510
unused  -- 10b. (+ 1b.) purple and brown with part control on reverse, fine mounted mint. S.G. 186, £275. Siriwong 186, B12,000. Photo
unused -- 10b. (+ 1b.) purple and brown with part control on reverse, fine mounted mint. S.G. 186, £275. Siriwong 186, B12,000. Photo

細節
unused -- 10b. (+ 1b.) purple and brown with part control on reverse, fine mounted mint. S.G. 186, £275. Siriwong 186, B12,000. Photo