Up for sale is a brochure put out by the Royer Manufacturing Co. featuring their line of Power Road Sweepers, undated.  Bulletin No. 39, I am not sure if that is indicative of a date or not. Great machines!  They were designed to be pulled by a truck or tractor.  Contains 12 pages in all.  Good condition, bumps and bruises as seen in photos.
I charge a shipping fee so that I can combine shipping for those that want to take advantage of purchasing more than one item.
I pack for safe shipment.