Vintage industrial chair. The frame is metal and the seat is wood. The chair shows some wear and marks throughout. It looks like the wooden seat was re-glued at one time. Some of the worn areas show light surface rust. The underside of the seat is marked "Mfg By Angle Steel Stool Co. 01Steel Line of Stools, Etc. Plainwell, Mich. No. 27 22 inch". The chair measures 36 1/2" to the top of the back and the seat height is 22". Please pm me for additional pictures.