Hello, I have a hand held tachometer which I think is from U-10 a type 11B U-Boat. What I would like to know if it is actually off U-10 and if it is, I would like to know what it was particularly used for measuring on the U-Boat and where I could find any books and photos of the history of U-10. I can provide photos of the tachometer. I am fascinated by the U-Boat stories and would also Like to
Forum: Technology and Operations