base section 16 that is any part of base section 16 below pivot pins 76 between the up and down terminal positions of assembly 18 shown in fig3 and 4 respectively the upper actuator plate 62 is preferably of cast aluminum or molded plastic construction and is secured to top wall 63 of lower member 60 by means of screw 56 and nut 58 as previously noted the generally square viewing and registration frame 24 is preferably integrally formed with plate 62 and extends therethrough from the top exterior surface 78 to its underside surface 80 where frame 24 defines a generally square aperture 82 that is at least coextensive and aligned with the square die aperture 26 of cutting die 27 secured to the underside of plate 62 by any suitable means in a recess 84 provided therein cutting die 27 comprises a die plate having a square cutting edge section 86 which defines the bounds of die aperture 26 die 27 is mounted on plate 62 in a predetermined plane that is substantially parallel to the surfaces 78 of plate 62 and top wall 63 of member 60 as noted earlier frame 24 includes the two inclined ramp guide surfaces 40.