This is a vintage sewing cabinet chair or stool.  It came with a cabinet that had a 1936 Singer model 15-91 sewing machine in it so I assume the chair is the same age.  The chair is approximately 19 1/2" high by 17 1/8" wide by 15 1/8" deep.  It has a storage compartment under the seat.  Very sturdy stool with no wobble.

I cleaned the seat and whatever it is made of is really tough.  I didn't get it all but it looks a lot brighter.  The last photo shows the seat before cleaning.  The legs will be numbered and removed to make it easier to box.  As I remove the legs I will wipe them down with Old English.  When you reassemble, you might need to wipe of any excess oil.  Shipping quote is for the contiguous states.  Please no post office boxes.