Unusual boltwork add-on

[wylk]

There's a round Mosler vault door for sale on eBay currently, which is fairly rare. It's in Chicago at the site of a former TCF bank branch but I don't know the address.

What's odd is some extra hardware in the center of the door. There is a bar covering the combination locks, and some other extras to the left of the lower lock. Additionally, the time lock and part of the mechanism seem to be mounted on a large rectangular plate which is then fastened to the door itself. I've not seen this before.

My first guess is that the door has some sort of emergency exit mechanism added to it and I'm hoping the experts here can clarify what's going on.

Here is a close-up --



Here are the four images from the auction:



Back in 2019 user HarryPontiac was looking for a big door to purchase. I sent him a PM about this, I hope he sees it.