Germany's WW1 Zeiss Bifocal Scope: the Glasvisier 16
This guide details the installation and basic use of the rare Zeiss Glasvisier 16 bifocal optic on a Mauser 98 rifle, as demonstrated by Ian McCollum of Forgotten Weapons. It covers the quick-detach mounting system and the unique bifocal lens design for WWI-era sniping. The optic features a 2.5x magnification in its lower portion and utilizes a clip-on front sight for aiming.









