original and well-maintained late 1920's american antique industrial four-legged riveted joint steel factory machinist stool designed and fabricated by the angled steel company, plainwell, mich. the fully adjustable height nicely worn stationary american industrial stool retains the original solid maple wood seat with slightly sunken center. the riveted and welded joint base with x-shaped stretchers provides added stability and durability. the circular-shaped seat has been lightly cleaned. the extensions contain several holes for achieving desired height. black stenciled manufacturer markings found along the underside of the seat.