Portuguese Colonies. (Angola). 1915. Unstamped envelope written from Mossamedes addressed to Brazil cancelled 'Expedicao Sul D'Angola/Quartel General/ Isento de Franquia, art.10o R.C.' and dated '13th August de 1915' in violet with circular commanding officers cachet 'Expedicao Militar a Angola/Servico Postale' in lilac, endorsed 'Linha do Douro/Gondomar' with arrival '15th Sept' on reverse. Scarce item of mail from the Overseas Force sent to Angola for Protection against German South West Africa with special until cachet and given free post. Ex David Weedon.