The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Cairo. Tombs of the Kalifs. Tombeaux des Kalifes. LL. 193. Post Card
Cairo. Tombs of the Kalifs. Le Caire. Tombeaux des Kalifes. B. B
Cairo. Tombs of the Kalifs. LL. 193
Cairo. Khalifs Tombs. The Cairo Postcard trust. Serie 629
Cairo. 96 Tombs of the Kalifs. B. B. Le Caire. 96. Tombeaux des Kalifes
Tombs of the Califs. Castro Brothers
Cairo. The Tombs of the Califs. Lehnert and Landrock