It's a Schmoller & Mueller player piano with the player "guts" taken out.
I tried to ID it- (date/model) but couldn't easily. My best guess is 1910's-1920's? It's free. You just gotta come and get it. It is heavy and would need four strong people to heft it. It currently needs a tuning but otherwise works and, of course, would need tuning after moving. It only has a sustain pedal currently but the armature is there for the second pedal. It definitely has some dings and chips but is a really cool item. Images show upper and lower windows both open and closed.
We live near Canada de los Alamos- about 30 min. from the plaza.

Free! You have to come and get it. Will take four strong people to move it.

antique upright piano (southeast of town)