When did Bill Stewart work for Wing? Seems to me Bob Lee told me it was during the Head Ski era while Bob was still running Wing for Head Ski. Also, most of the bows that Stewrt designed were when Head Ski was owner. The Slim Line line of bows was designed by Bill Stewart, such as the Slim Line Red Wing Pro, Slim Line Vantage Pro, Slim Line Master and the Presentation I. Furthermore, the 52" Red Wing Hunter was not built prior to 1967 so it is my guess that the bow you have was built in 1967 as Bob Lee sold Wing to Head Ski about mid year 1967. The limb tips and handle shape resembles those of the 58" Red Wing Hunter made prior to Head Ski with bubinga handle and bubinga/maple tip overlays.