| Owner | Herman Cudris Castañeda |
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| Observations | Zanzibar, semi-autonomous region of Tanzania, comprising a pair of islands off the east coast of Africa called Unguja and Pemba. |
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| Country | Tanzania |
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| Face value | 50 céntimo |
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| Year | 1957 |
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| State | New |
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| Status | Exhibition - Non-transferable |
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| Category | Maps |
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| Format | Landscape |
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| Color | verde |
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| Printer | bradbur,wilkinson y co.ltd. london. |
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| Other information | Perforated stamp Air mail |
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| visualizations | 253 |
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