1019
unused  -- 30c. blue-black, small to enormous margins from the top of the sheet, thin spot in the top margin and some slight thinning around an old hinge mark, nevertheless a very presentable example of this rarity. Photo
unused -- 30c. blue-black, small to enormous margins from the top of the sheet, thin spot in the top margin and some slight thinning around an old hinge mark, nevertheless a very presentable example of this rarity. Photo

细节
unused -- 30c. blue-black, small to enormous margins from the top of the sheet, thin spot in the top margin and some slight thinning around an old hinge mark, nevertheless a very presentable example of this rarity. Photo
Yang SP10, US$40,000; S.G. SR7, JPS CS7