C.P. Goerz Berlin 4x is an interesting WWI scope because it was mounted on a mount which could be seen as the ancester of the WWII turret mount. This was, with the similar Goerz 3x mount, the only mounts from 14-18 that could be changed from a G98 to another one without modification (having the right bases on it, of course).
Sniper Scopes 