for history, i am doing a project on espionage during WWI and i found some very interesting facts about the world of espionage during that time. i found some really cool pictures that i wish i could post, but i dont have a scanner, so i cant. but they had invisible ink that was used(exactly like page 47!) and a watch with a camera(which you can now buy at radioshack or any store for that matter! ) after i do more research on it, ill post all my findings here, and if you find anything about the real world of espionage and super swank spy gadgets, post it here!