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Colonial or territorial issues – Europa stamps – Joint issues – Mixed FDCs – Omnibus series – Siamese issues – “True” joint issues – Twin issues – United Nations What is a joint issue ?

April 26, 2017colonial Europa FDC Joint mixed stamps territorial United Nations

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Colonial or territorial issues – Europa stamps – Joint issues – Mixed FDCs – Omnibus series – Siamese issues – “True” joint issues – Twin issues – United Nations What is a joint issue ?

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Joint issues are stamps issued by at least two countries on the basis of a common event, usually at the same date (if technically possible) and sometimes with the same design. Postal administration cooperation is required.