Located just before the Bridge entrance South gate was a popular area around the bridge full of shops and tradesmen. The south end of the bridge was then used for a somewhat disturbing tradition of displaying heads and limbs of traitors, as it took the place of the original Traitors Gate.
We want to include our heads on pikes dipped in tar as a finishing touch. I uploaded my mortal engines head to test that out, pretty gruesome. Once I tweak the model I'm going to unwrap and texture this by the end of the week. With any luck I can gather some more reference on the signs that were above the archway entrance.