unused 1924 overprinted horizontally towards foot, 12c. black and deep blue, a mint marginal strip of three from the top of a sheet, variety centre stamp with overprint omitted, very fine. A showpiece and the only known example recorded outside the Royal Collection. B.P.A. Certificate (1990). S.G. D56a, #5000. Photo

細節
unused 1924 overprinted horizontally towards foot, 12c. black and deep blue, a mint marginal strip of three from the top of a sheet, variety centre stamp with overprint omitted, very fine. A showpiece and the only known example recorded outside the Royal Collection. B.P.A. Certificate (1990). S.G. D56a, #5000. Photo
來源
Col. J.R. Danson, 1971
Charles S. Taylor, 1990
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