Overhead directional sign in Johannesburg, from before the change from the FHWA to DIN font, but with icons and modern arrow-per-lane signage.
Inexplicable route shield for the M93 on the M37, Germiston. I think I read somewhere that the shape of the shield is based on a pre-colonial armor design. The italic initial on the bottom is the cardinal direction in English/Afrikaans.
More South African route shields, these for the N12 South and the R62 East/Oos
Some faded older South African route shields, these in the FHWA font instead of DIN. Unlike the later ones, the FHWA shields didn't use italics for the cardinal direction.
Fun fact
One-way arrow, Eswatini
Adopt A Highway sign, Snug, Tasmania
Some analog video shots of East German autobahn signage
South African Transport Services Pictorial Review is from pre-democratic South Africa and includes a map with the unrecognized bantustan “country” of Transkei
Electric Trains of South Africa
Some infrastructure shots in the book include a telephone exchange in Durban, the master clock in Johannesburg, and a traffic control room