of a pin back button or badge application_number US 2415479 A description the pin back button or badge to be made by the use of my invention comprises a shallow axially flanged metal shell 10 over which circular paper and plastic cover sheets 12 and 14 are applied to carry the picture or message for the badge and a body or backing disk 16 carries a pin 18 by which the badge can be attached to the wearer 39 s clothing these components of the badge are conventional and readily available preformed devices and form no part of the present invention as shown in fig1 the die set of my invention comprises a cylindrical pressure member 20 a cylindrical ring 22 a ring like cylindrical forming die 24 a cylindrical member 23 of hard plastic and a solid cylindrical hammer member 26 the ring 22 has concentric axially parallel inside and outside walls and the internal diameter of ring 22 which is the same as the diameter of the badge or button to be made by the dieset determines the working diameters of all of the other elements of the die set the axial length of this ring 22 also sets the axial measurement of the other element of this set the outer wall of the ring 22 is provided with three short.