Al-Korba Square
This is the Korba square just so close to the baron's palace.
In 1931 Egypt was still a part of the British Empire and many foreigners were living here since long.
Famous stores were mainly owned by the French and the Greek.
This explains why you see the name of the shop in the picture written in French.
French also was the language of the elite in Egypt, and Heliopolis was and still mainly for elite.
Egypt