I got a bit of a history lesson from this one from South Africa. On it are stamps not only from the RSA but also "Venda" and "Transkei". These were known as Bantustans: territories that were reserved for black Africans in South and South West Africa during apartheid. These were two of four that were established in the 1970's and declared as independent, but only recognised as such within South Africa. All Bantustans were re-integrated with South Africa in 1994.
Aston Manor is a neighbourhood within the city of Kempton Park which is north-east of Johannesburg.