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postage
1895 1895b issue ovpted on stamp of India - Empress Victoria wmk. star (no perf info)
| - | 3a | org | ovpt, Queen Victoria |
1896, Sep 20 wmk. rosette p. 14
| - | 3a | gray & red | Sultan Hamad bin Thuwaini |
1898 wmk. mult rosette
| X | 3a | sl & red |
1899, Sep 1899 issue
| - | 3a | sl & red | Sultan Hamoud bin Mohammed |
1904, Jun 8 1904 issue
| X | 3a | gray | monogram of Sultan Ali bin Hamud |
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