Even though the large Otter Mercator knife wasn't designed to be an Army knife, it quickly gained acceptance in Emperor William's army. This was also the time that created the name "Emperor William Knife".

Simple, functional and robust – the Mercator knife has offered these benefits for over 100 years and today, the knife is used worldwide and distinguishes itself with its narrow, rugged design in everyday life.

The blade of this knife is carbon steel and the robust powder-coated metal handle is classic black colour. The knife is lockable, which facilitates safety in working with it.

OTTER knives are manufactured and sharpened in Solingen, Germany since 1840, using traditional methods of meticulous handcraftsmanship.