About the Otter Mercator Copper Pocket Knife The Otter Mercator Copper Pocket Knife combines one of Germany’s most iconic folding knife designs with the timeless appeal of a solid copper handle. Produced in Solingen, Germany, the Mercator has been trusted for generations for its slim profile, practical design, and reliable everyday performance. This special copper edition adds a warm, premium feel and develops a unique natural patina over time, giving every knife its own individual character. Featuring a 90 mm stainless steel blade (1.4034), the Mercator Copper offers excellent edge retention, corrosion resistance, and dependable cutting performance for everyday carry (EDC). Its slim construction allows it to slip comfortably into a pocket, while the secure backlock mechanism provides confident operation during use without adding unnecessary bulk. Handmade by Otter Messer in Solingen, Germany, this pocket knife represents over a century of German knife-making tradition. Combining premium materials, functional design, and outstanding craftsmanship, the Otter Mercator Copper is a classic EDC knife built to be carried, used, and enjoyed for many years. Experience Otter Messer Craftsmanship Discover how Otter Messer continues the knife-making traditions of Solingen, Germany, in this official workshop video with English subtitles. Official Otter Messer video highlighting the traditional craftsmanship and manufacturing process behind the Mercator knife.