An independent research archive

Everything a Case XX collector needs to identify a knife.

Knife Library compiles vintage catalogs, tang stamp charts, and handle material references into one place — so you can date a knife, name its pattern, and understand what you're holding.

8 patterns catalogued 8 handle materials Est. 2026 — early build, growing weekly

SECTION 01

Patterns & Models

Search and filter Case's blade-and-handle patterns by blade count and handle shape, and open any one for full detail.

Browse patterns

SECTION 02

Tang Stamps & Dating

A visual timeline of the dot-and-XX stamp system Case used to mark manufacture years, decade by decade.

Browse the dating guide

SECTION 03

Handle Materials

Jigged bone, stag, pearl, and the synthetic handles that followed — what they look like, and roughly when Case used them.

Browse materials

TOOL

Identify a Knife

Not sure what pattern you're holding? Answer a couple of questions about blade count and handle shape to narrow it down.

Start identifying