Great Britain 1902 10d dull purple & carmine (O.W. Official), SGO35 Tanzania stamps The Stanley Gibbons catalogue value

The Stanley Gibbons catalogue value of £1

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History of the Oyster Perpetual Celebration Dial

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Great Britain 1902 10d dull purple & carmine (O.W. Official), SGO35 Tanzania stamps The Stanley Gibbons catalogue valueGreat Britain 1902 10d dull purple & carmine (O. W. Official), SGO35. A very fine and fresh unused example, with original gum, of this rare departmental issue. Accompanied with a 1974 Royal Philatelic Society (RPS) Certificate of Authenticity. Stanley Gibbons catalogue value: 7,250. The "O. W. Official" overprints were issued to Office of Works. Higher value issues from 2d and above were issued in 1902 for registration fees and overseas mail. Order