From 1910 to 1961 the Union of South Africa was a self-governing country that shared a monarch with the United Kingdom and other Dominions of the British Empire. The monarch's constitutional roles were mostly delegated to the Governor-General of the Union of South Africa.
Last to reign Elizabeth II 6 February 1952 – 31 May 1961
Queen Elizabeth II with the Commonwealth prime ministers during their conference in December 1952
Stamps commemorating the coronation of George VI, 1937 (top) and the coronation of Queen Elizabeth II, 1953 (bottom)
Meritorious Service Medal (South Africa)
The Union of South Africa was the historical predecessor to the present-day Republic of South Africa. It came into existence on 31 May 1910 with the unification of the Cape, Natal, Transvaal, and Orange River colonies. It included the territories that were formerly a part of the South African Republic and the Orange Free State.
Holiday Time in Cape Town (1891-1899) depicted an imagined future united South Africa at a time when the idea was being widely debated in the Cape Colony.
The first Union cabinet
South West Africa stamp: Princesses Elizabeth and Margaret on the 1947 Royal Tour of South Africa