Stenger & Berliner Leather Barber Chair
It seems like this is some sort of barber chair or similar, it is labeled Stenger & Berliner and they make straight razors and other things for barbers.
The chair is not particularly comfortable, it is very firm and straight. The headrest adjusts up and down, all the hardware is very sturdy and metal.
It's an interesting chair, I do not see any others anywhere for sale online. It is quite heavy as well, but buyers can arrange shipping if they choose, separate from the sale.