This Spanish folding knife known also as Navaja . It was extensively used in Spain during the 18 and 19 Centuries to cut food as well as to settle personal accounts, and found as a man best companion still today. This one is a 18 Century piece. 7 1/2 inches blade with a 4 inches clipped spine, fullered and engraved. Handle is engraved brass on wood with external steel spring (restored). Total length 16 1/2 inches fully opened. Very good condition. For a very similar Navaja see: Rafael Martinez del Peral Forton, LA NAVAJA ESPANIOLA ANTIGUA p 35 Fig 6