In my Grandfather’s diary entry on Friday 30 April 1943, when we was on leave in Alexandria, he wrote of visiting Pompey’s Pillar in Alexandria. This photo was possibly taken on this day. The caption to the photo is what he had written on the back of the photo.
Following info taken from Wikipedia –
“Pompey’s Pillar is a Roman triumphal column in Alexandria, Egypt, and the largest of its type constructed outside the imperial capitals of Rome and Constantinople. The only known free-standing column in Roman Egypt which was not composed of drums, it is one of the largest ancient monoliths and one of the largest monolithic columns ever erected.”