a sandwich the entire assembly is placed in a flat platen type of oil hydraulic press where suitable heat and pressure are applied to produce the unitary identification card 1 of my present invention the preferred lamination process is to raise the pressure of the oil hydraulic ram to about 750 1000 psi against the sandwich at which time the electric heating elements within the platens are turned on thereby quickly raising the temperature of the platen and the sandwich therebetween to about 320 u00b0 f just as soon as this temperature is reached as indicated by a visual thermometer the electric power is shut off automatically and the thermoplastic which is then in a sticky or molten state is quickly cooled by a cold liquid at zero temperature which is automatically pumped through the platens under 150 psi the thermoplastic sheet 11 while in the molten state and under high pressure thoroughly flows and mixes with the counterpart sheet 12 and the vinyl coating on core 10 the design markings 4 and 5 are so positioned on sheet 11 that they overlie the 34 photographic record 34 2 in this embodiment a blank portion t 39 is provided in sheet 11 to allow the incorporation into the card of a thumbprint of the user of the card and to provide the clear visibility of the thumbprint through the thermoplastic sheets it is most advantageous to place the fingerprint on the underside of the sheet 11 so that.