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Prototype Folding Knife of design identified as "Butterfly Knife" with design papers intended for pa

Currency:USD Category:Antiques Start Price:200.00 USD Estimated At:400.00 - 800.00 USD
Prototype Folding Knife of design identified as  Butterfly Knife  with design papers intended for pa
Prototype Folding Knife of design identified as "Butterfly Knife" with design papers intended for paten submission, labeled "Inventor/Earl Cox" and dated "February 1st, 1946". With full exploded diagram and detailed descriptions of knife. The knife sof design identified as "Butterfly Knife" with design papers intended for paten submission, labeled "Inventor/Earl Cox" and dated "February 1st, 1946". With full exploded diagram and detailed descriptions of knife. The knife shows anicely made clip point blade measuring approx 5 1/4", 11 1/16" overall when unfolded. Grip scales made of fiberglass and select hardwood with aluminum spacers and brass mounts and shows a high degree of quality and workmanship throughout. One of two possibilities on this knife; either an American viewed similar knives buts of crude quality in the Philippines and attempted a US Patent of this knife, or this may have been the forerunner of this style butterfly knife. Withpaperwork.