I opened my old copy of Escape from Colditz recently, just to reminisce, but for some reason decided to lift up the cardboard insert to see if there was something underneath, and there was. It's either a game in itself, or at least part of one. This is what I found.
It is listed as being made by ICOG Limited in Dublin, Ireland 1975. It's an electronic game that takes some kind of battery I'm unsure if I can still buy anymore. It looks like some electronic version of Battleship. Please help me identify it if you can?