. John H Marsh Maritime Photos Collection, Cape Town, South Africa: The Centre.

This website sells images of vessels taken in South Africa, primarily between 1921 and 1953. You can find what images are available, and then order them directly (at a cost) from the Research Centre.

You'll see that the source page has information about the ship's size, launch date, and date of photographing. That is presented in an unclear manner and I did my best to make it more clear by better identifying the information that is presented.