This card does not show us the ideal close-up view of the tram, but it's interesting to me because it is an open-air horse-drawn tram.
The card was sent in 1906, the very year the system was converted to electricity. Unlike this rather primitive tram, some of the electric ones were colorful double-deck models, but there were also more upscale and enclosed horse-drawn trams. If you look closely, you can see a few nicely-dressed ladies with hats sitting towards the front of the tram, but it's impossible to tell if they're black or white. Was this a lower-class tram for blacks? Early on, trams in South Africa were racially segregated along with most other facilities and services.
Here's a picture I took at a performance in South Africa during the days of Apartheid.
The sender of this card (N. Claase) saved postage by sending this card without a message, thus qualifying as printed matter.