Original 1941 German pocket calendar planner. This was actually brought back by an American GI, which seems a rather odd item to bring home, but I think it had something to do with this being from a workshop for telemechanics and he was very involved with signals. The book does have a few entries but not many. Like most similar booklets from Germany of that era, it is filled with loads of generic, useful everyday information. General information about the world, street signs, license plates, and a map of Europe and a map of a very large Germany.