German stamp album publisher Leuchtturm generally did a great job with their preprinted stamp album for South Africa. They followed a minimalist, clean layout without the year of issue only, and no descriptions for what the stamps commemorate.
On some pages like the first two below, for example, several versions of the same stamp exist, but there is place for only one. (The stamps were issued on on different types of paper, or with different watermarks, for example.)
So I added a page into my album with the sets that had stamps with multiple versions.
P.S. That monument on the green 4c stamp is in my hometown of Vereeniging. Its inscription says ‘Wounded but invincible’. Sculptor Coert Steynberg is shown working on it (it was unveiled in 1961).
The monument commemorates the Treaty of Vereeniging, a peace treaty, signed on 31 May 1902, that ended the Second Boer War between the South African Republic and the Orange Free State on the one side, and the United Kingdom on the other.
