The "Mercator" blades were first forged in 1867 by Heinrich Kaufmann & Sohne, Indiawerk. Their reliability made them popular with Kaiser Wilhelm's Army in WWI. Eventually they garnered acclaim from civilians as well. They are virtually indestructible and have been passed down from generation to generation. Otter-Me
OTTER-Messer from Urban Kit Supply
Mercator knife, Brass handle
Mercator by Otter-Messer Traditional German Folding Pocket Knife
Pocket Knives – Hand-Eye Supply
Blades Canada - Warriors and Wonders - Vancouver, BC
OTTER-Messer Mercator Copper Otter 10601R Small Stainless Steel
Otter Mercator Solingen K55 Black Cat Lockback Folding Knife - 3.5
Otter Mercator 10-736 RG Large Brass Carbon Pocket clip, pocket
Otter - Messer Mercator Brass Large Carbon : Sports
OTTER-Messer from Urban Kit Supply