Richardson Seating model 1957 single ring chrome bar stool with a back.  This bar stool is manufactured in Chicago.  It can come in a 24 inch seat height and a 30 inch seat height.  30 inches is standard for a 42 inch bar while 24 inch bar stools are perfect for 36 inch counters.  Bar stool comes standard with an American made 360 degree swivel.  The bottom of the seat is made of North American 5/8" plywood.  The bar stool ships almost partially assembled.  You just have to attach the seat to the frame with the included machine screws. It's very easy.