Ultimate gun safe

[Curmudgeon]

I realize that the door is mostly an architectural feature but did old vault doors really have all the workings and hinges on the outside?

I doubt the door is strictly architectural. It is likely fully functional. I personally know two people who have similar below ground rooms, and the vault doors are very real. And yes, vault doors do have the hinges on the outside. Once the door is locked, the hinges are irrelevant to the security of the door.

JP