Spanish Guinea: 1927 (14.3.), Casa de Nipa definitives 1pta and 5c used on pre-p
Spanish Guinea
1927 (14.3.), Casa de Nipa definitives 1pta and 5c used on pre-printed formular envelope 'CERTIFICADO No............. / Empresa del Sobre Acorazado' registered use from SANTA ISABEL (Fernando Poo) to Germany, reverse with wax seal and transitmarks Madrid (3.4.) and Sangershausen (6.4.), roughly...