The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Caire. Mosquee Sultan Hassan. The Cairo Postcard Trust
Caire Mosquee Sultan Hassan
Le Caire. Mosque Sultan Hassan. The Cairo Postcard Trust. Serie 207
83. Cairo. Mosque of Sultan Hassan. The Pulpit. LL. Levy Fils. Le Caire. Mosquee du Sultan Hassan. Niche et la Chaire. LL
Egypte. Le Caire. Mosque Sultan Hassan. No. 1. L. and H. Cairo Postcard Trust
Cairo. Panoramic View and Sultan Hassan Mosquee. The Cairo Postcard. Series 646
Cairo. The Mosque of Sultan Hassan. 103. L. Scortzis. Caire. La Mosquee de Sultan Hassan
Caire. Mosq. Sultan Hassan. Fritz Schneller and Cie. No. 19