Hello, also a new addition to my u-boat collection, a very rare line throwing gun, in german called "Leinenpistole, System Sander". Complete with the also rare linen cover (inside stamped the year "1940") and an steel mount. This rocket pistol was used on german ships or u-boats for firing ropes with a rocket to another ship or boat. On the rocket was a steel mount and on this mont was a rope attached. This gun comes from the german u-boat bunker "ELBE II"! Look at the card with "ELBE II, "Leinenpistole" (handwriten) and "Ausgabe an U-...." (given to u-boat nr...). Regards, Monsun