This ZF39 type scope was made by K. Kahles in Wien. These 4×60 sniper scopes were given the code “cad” during WWII. They were used on SSR, LSR and high turret mounts (like this one).
Sniper Scopes
From World War I to World War II
Very nice addition to collection Laurent
Thank you Dave but this one is not mine, unfortunately 🙂