I spend a lot of time scrolling through the listings of stamps and postcards online.
Here is a postcard with a photo from Tel Aviv, Israel (circa 1942) that I find very interesting.
In 1942, Tel Aviv was part of Mandatory Palestine, a territory administered by the British under a League of Nations mandate from 1920 to 1948. During this period, Tel Aviv was a rapidly growing Jewish city adjacent to Jaffa. The entire region was known as Palestine, not as the state of Israel, until 1948.
The stamp is good for 10 mil, 10/1000 ths of a Palestine pound (£P1) which was pegged 1:1 to the British pound at the time. So 1 penny’s worth of postage was good for sending the postcard down to South Africa.
The sender was Harold McMaster, on active duty in the British Army. (The British Army controlled Palestine in 1942 as part of the British Mandate, which lasted from 1920 to 1948.)
It certainly seems that Mrs. McMaster in Vereeniging, South Africa, was his mom, or at least a close family member.
There were lots of South Africans of British descent, and of Jewish descent, in South Africa at the time (and there still are, to this day).