that the shutter door 16 has not been opened since the cassette was sealed when the cassette 10 is placed in an atm 12 the actuating mechanism 36 in association with the means 109 fig3 for indicating tampering will cause the indicator wheel 122 to index one position as previously described assume a routine operation with no problems under this circumstance the cassette 10 when empty or low on bills will show a white color at the window 152 the white color indicates one cycle of opening and closing which represents a routine operation and therefore the cassette 10 may be routinely replenished as previously described in the example being described if the cassette 10 with green color in window 152 is placed in an atm 12 the opening of shutter door 16 will cause the white color to be displayed if however a jam or malfunction occurs in the dispensing of bills 46 it may be necessary to remove the cassette 10 from the atm 12 to fix the jam for example when the cassette 10 is replaced into operative engagement with the atm 12 the actuating means 46 will initiate the change in cycles recorded on the indicator wheel 122 causing the number 34 2 34 to be displayed at window 152 if the cassette 10 and atm.