This 3" old pocket knife with two blades is marked West Cut

This 3" old pocket knife with two blades is marked West Cut #331.

What are the different types of knife blades? - Quora

Pocket Knife Guide 2022: Top Picks for Your Everyday Carry Setup

Factory Manufactured, Vintage Folding Knives, Collectable Folding

The Physics of Knives 101 - HubPages

Schrade Uncle Henry Golden Spike - SCH153UH

A 3 1/4" vintage Frontier pocket knife with two blades

Pocket & Side Knives Page 4

A School Superintendent Turns Old Steel Into Heirloom Knives

Everything You Need To Know About German Knives – Dalstrong