St Thomas and Prince Islands.
São Tomé and PrÃncipe, is an island nation in the Gulf of Guinea, off the western equatorial coast of Africa. It consists of two islands: São Tomé and PrÃncipe, located about 140 kilometres apart and about 250 and 225 kilometres respectively, off of the northwestern coast of Gabon. Both islands are part of an extinct volcanic mountain range. São Tomé, the sizable southern island, is situated just north of the equator. It was named after Saint Thomas by Portuguese explorers who discovered the island on his feast day.
São Tomé and PrÃncipe is the second smallest (in terms of population) African country (larger only than Seychelles). It is the smallest country in the world that is not a former UK dependency, a former US trusteeship, or a European microstate. It is also the smallest Portuguese-speaking country.
Portuguese Colony, 20 centavos
Independent Republic, 20 Dobras
Portuguese Colongy, 50 Escudos