KNIFE Pfaff 603 604 Lower

Also Mammylock ML303, ML303R, ML4, National N9, N10, N20, Necchilock NL3, NL3R, NL4 Pfaff serger 794, 795, 796, 797, 799, Riccarlock RL330F, RL333, RL340, RL343, RL343DR, Consew Tuffylock 93,