Vintage wood piano stool made for a salesman's sample, or as a toy. Very nicely made!
It's sized for a doll between 10" - 18", a little bit on the small side
scale wise for American Girl dolls, I think - but then the old-fashioned
piano stools are pretty small.
The wood screw really works to raise and lower the seat. It's about 5 1/2" tall set to it's lowest, and measures 4 1/2" across the seat.