This lot is believed to be manufactured before the incorporation of the Duo-Safety Ladder company in Wisconsin – possibly in the 1920’s. Shoes measure approx. 5-3/4″ long x 1-7/8″ wide, could most probably be adapted to fit various ladder configurations ( other than wood ) and appear to be new old stock. Triangular mounting bracket / plates measure 5″ long x 1-7/8″ wide.  All parts are substantially constructed. Photos are considered primary source of cosmetic condition description. All items are securely packed and usually ship same or next business day. No reserve!