Yea, I'll get some good pics of it tomorrow, I've been meaning to do that anyways. Hopefully it isn't raining.
The door for the bottom on mine does not have the lock in it unfortunately, just the open hole. The top has a vintage padlock on it. That I think is period correct and thanks to a member here finally works.

I'll get some pics of the front door bar(s) as well. Those would be pretty simple to make. Does yours have the removable tray in the top box? Are there any drawers in your bottom box?
After looking at your box again, it does look like someone made the bottom door. The hinges and lock location and hole size don't look correct to be original.
