1 British or U.S. World War 2 knuckle knife.  This World War 2 knuckle duster was made with a Rodgers Sheffield fighting knife blade.  

This knife measures 9 3/8" overall.  The blade itself measures 4 5/8".  

The handle is made of aluminum.  Nice WWII knife!  The blade has marked 'RODGERS'.  There was no sheath with this knife when we bought it.  

This WW2 knuckle knife is in excellent condition.  The blade has scattered staining.