Update: posted my Otter Mercator yesterday, today I got a Kwik Stud and modified it to work better for this slim knife. Here are some pics of the finished product, and explanation

Otter - Messer Mercator Brass Large Carbon : Sports & Outdoors

OTTER-Messer from Urban Kit Supply

Mercator by Otter-Messer Traditional German Folding Pocket Knife – Top Shelf Worldwide

OTTER-Messer from Urban Kit Supply

Four Bees: Kat K55K Mercator Knife, WW2 Captured Knife, Veteran Bring-Back, D.R.G.M.

Otter Messer: Mercator Stainless Steel Knife – Tennessee Outfitters

OTTER-Messer Mercator Folding Knife 3.5 Carbon Steel Blade Stainless Handle

OTTER-Messer Mercator Folding Knife 3.5 Carbon Steel Blade Stainless Handle

USA Knifemaker Supply Kwik Thumb Stud Black Oxide

OTTER-Messer Mercator Folding Knife 3.5 Carbon Steel Blade Stainless Handle

A true masterpiece Amongst Cult Knives- Otter Mercator Black Cat