That is an interesting door. I wonder where in Wilmington (Delaware) it lives?
It seems to be a Hollar door. In the first image, the right-hand circled object is the motor bolt winding tool. What is the circled object on the left?
In the next image, aside from the nice beveled glass, notice there is a handle in the inside of the door. I assume this is to assist in closing the door when it’s up against the wall. This is an unusual feature, I’ve only seen this on the doors at the Trinity Restaurant (New York City), and one other picture which I have not yet placed.But then there is another feature, circled in red (below). My guess is that it’s some sort of interlock. To the left of that (circled in black) is a “ding” that is likely related.
The almost-face-on image shows the bolt rollers nicely. There is some sort of bell-crank lever to the right of the time lock, above the bolt motor, that I don’t understand.
Let’s look at the outside of the door:
There are two dials on the left. The upper one seems to be in about the same location as the bell-crank. Could these be indicator dials to show the condition of the bolt motor? If so, doesn’t drilling holes through the door go against all that an automatic door is supposed to represent?
Here is the similar door of unknown location (from the Wells Fargo archives). It has the inside handle but not the bell-crank thing. And it’s more clear that there are two rollers per bolt.
