The video briefly shows segments of the bronze gates of the city of Balaway (near modern Qaraqosh). Three such gates were excavated, two by Hormuzd Rassam in 1878 which are now in the British Museum, and another by Max Mallowan in 1956 which were put on display in Mosul. Rassam’s gates were built during the reigns of Ashurnasirpal II (reigned 883-859 BC) and Shalmaneser III (859-824 BC). Mallowan’s gates were also from the reign of Ashurnasirpal II. The bronze bands held the wood beams of the doors together and attached them to the posts. The beams were decorated with ornate scenes from Assyrian military campaigns. 055 Still from ISIS video at 0:55 showing Balawat Gates on display. Around thirty panels from the Mosul gates were looted in the aftermath of the 2003 invasion before American troops were able to secure Mosul. The gaps where the looted pieces once sat can be seen in the image above. Nothing in the video shows the gates being destroyed or damaged. As they are portable, it is possible they may be sold on the antiquities black market. (Source: https://gatesofnineveh.wordpress.com/)