St. Louis, MO: Ripley & Kimball, Agents, [1881-1887]. A single fold circular for a Straight-Way Valve made by the Pratt & Cady Company. These valves are meant for use in radiators, though whether they are meant for commercial or residential use is unclear. This new style of valves makes "them much shorter and stronger than the former style, at the same time retaining all the advantages of access to the seats, for seating and repairing through the small angle opening." The flyer itself features four engravings of the valves. The two on the front are gold foiled and depict the outside of the valve. The two fine illustrations on the interior section of the flyer are cross sections of the valves done in black and white. There is additional gold foiling on the border and other decorative design elements. Included in the text of the flyer is a more detailed description of the valves and a price list. The flyer is dated based on newspaper advertisements by Ripley & Kimball that show that they were in business together from October 1881 to February 1887, when the business changed partners and became Ripley & Brouson. Single-fold, double sided. Foiling detail. Measures 8 1/2" x 5" (folded), 10" x 8 1/2" (unfolded). General wear. Crease marks.