I have an older German scope on my Obendorf Mauser, horizontal adjustment is on the mount, the vertical adjustment is done in a single turret on top of the scope. Vertical adjustment requires a special tool, sadly missing. Does anybody know of such a tool, or where one may be acquired, or what may be used in it's stead.

The scope is marked "Wetzlar" and is a removable claw mount.

Cheers MikeR