James Bond's (Pierce Brosnan) exploding pen prototype from Martin Campbell's Bond film GoldenEye. Q (Desmond Llewelyn) provided Bond with the exploding pen. In the film's climax, a nervous Boris Grishenko (Alan Cumming) inadvertently activated the pen's explosive feature, with Bond using this as an opportunity to damage the control centre and escape. This particular pen was custom made by the production with internal wires connected to a 9V battery(no longer operational and diaconnected)to create a red light to come on after 3 clicks indicating on screen that the grenade was armed. They ended up just going with it being armed after 3 clicks and not showing a red light. COA from Propstore
