Vintage 1940's  World War II Era Handheld Dexterity Puzzle titled  " BLACKOUT " as shown in our photos.  It measures  3 1/2" X 5" and has a glass top.  The printed instructions are that : The Bombing Planes have been sighted. They will arrive in exactly two minutes.....Can You BLACKOUT All The Lights in Time to Save The Town.??  Reminded me of what we have heard about London blacking out their lights during the bombing in World War II.  The lithograph background is in excellent condition and this is a wonderful dexterity puzzle to display in someone's collection.