The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Cairo. The Mosque of Ibn Tulun. Lehnert and Landrock
Cairo General View of Ibn Tulun Mosque. Lehnert and Landrock
Cairo. The Ibn Tulun Mosque. 876 A. D. Lehnert and Landrock. No. 530
Cairo. The Mosque of Ibn Tulun. Ferrania
Cairo. Ibn Tulun Mosque. News Publications. Kruger
No. 40. Cairo. The Blue Mosque. Lehnert and Landrock
Cairo. The Blue Mosque. Lehnert and Landrock
Cairo. The Blue Mosque. Lehnert and Landrock. Ernst Landrock