specially illustrated in the drawings the vacuum causes the front most label 2 to be drawn against the contact face 18 of the suction head where it is securely held in place while the label 2 is passing the adhesive station 12 an adhesive material is applied to a previously selected area to specifically define this area the adhesive station is provided with a corresponding elevation 13 which when in contact with the label 2 applies adhesive to the rear side of the label 2 the adhesive station 12 preferably performs a pivotal motion whereby adhesive is applied to the label 2 during rotation of the rotary unit 10 at the applicator station 5 a security element 3 is placed in the area previously coated with adhesive at the storage station 6 the suction air is cut off from the suction head i 1 this causes the label 2 with the security element 3 to be released and pressed into the stack 9 the embodiment of the device of the invention shown in fig2 is equipped with four suction heads 11 and three stations 4 5 6 it will be understood of course that the number of suction heads 11 and the number of stations 4 5 6 may be increased resulting in higher costs on the one hand but permitting higher production rates on the other 0026 fig2 shows a schematic representation of a second embodiment of the device 1 of the.