Photo by Syrian traveler Hussain Ibish, who was accompanying faculty from the American University of Beirut (AUB, my alma mater) to a trip to the Syrian desert in 1935. I am sure the AUB library has a lot of hidden treasures about this period and part of the world.
Gleaned off the internet.. an announcement about the spring festival of 1937 in Deir El Zor, Syria.