 Gerber Legendary Blades produced a line of folding knives by Applegate and Bill Harsey, Jr. based on the Applegate-Fairbairn fighting knife.In the late 1980s Applegate released a modified version of Fairbairn's Smatchet, which had been used by the SAS and OSS during World War II.The development of this weapon began as a collaborative effort between Applegate and Fairbairn during the war.