Zobrazujú sa: Juhozápadná Afrika - Doplatné známky (1923 - 1929) - 7 známky.
1928 -1929
South Africa Postage Due Stamps of 1922-1926 Overprinted "S.W.A."
WM: nikto Perforácia: 14
1928 -1929
South Africa Postage Due Stamps of 1927-1928 Overprinted "S.W.A."
WM: nikto Perforácia: 14