Still messing with hardware

There's just a few bits of hardware left on the first floor that haven't been cleaned. One was on the office door in the front, and one was on the door between the kitchen and the living room.
I'm pretty sure the kitchen door is from the first iteration of the house, and I'll have a whole post on it later.
The door to the office is giving me fits. It's also one of the older doors, I think. It's not as ornate as the later door hardware. Many of the screws are frozen, and one even just fell out, taking a chunk of door with it. I've tried stripper and scraping. I've hit it with penetrant to break the screws free, but to no avail. Two of the lock escutcheons just will not budge.
I was able to get the door knob plates off though. Nothing fancy, just iron, I think. But they have these four little pins on the back of them. I think the idea was that the little pins would hold them to the wood better once they were screwed down.

Two screw holes. Four pins.

That's a great theory.
In practice, if those little plates even get a little loose, they turn into spinning saw blades. This is what it does to the door.

Looks like tiny beavers lived back there for the last hundred years.

This door does have a Corbin mortise lock, much newer than the other hardware on the door. I opened it up, cleaned and oiled everything and got the lock moving, but I don't have a key for this one either. I found it in a 1941 PF Corbin catalog:

"Good buildings deserve good hardware."

As Ian is fond of saying "Things were done, no one was spared." I think this door is a collection of all the left overs. It's the only door in the house where the lock escutcheons don't match, and the door knobs are brown, not black.

Swirly. Pretty in the light, but a little scuffed up.

I hit that door knob plate with some Gibb's so it would stop rusting. I guess I'll drill off the lock escutcheons tonight so I can clean them and finally call this one done. When I sand down the door this summer, this one is going to need wood filler in those chewed up areas. I might consider filing the teeth off the back of the knob plates too.