In 1913, Hafner left the company. Believing he would be given a significant portion of the company if the trains proved successful, Coleman refused when Hafner asked to exercise this option. Hafner started the Hafner Manufacturing Company, which sold a line of trains called Overland Flyer. Sommers immediately stopped carrying the American Flyer trains in favor of Hafner's brand. Initially, the Hafner and American Flyer product lines were very similar, suggesting they may have been built using the same tooling. This suggests the possibility of the two companies continuing to collaborate. Hafner's business survived as a manufacturer of clockwork trains until 1951, when he sold his business to All Metal Products Company.