schematics for a 6mm clip, aka schematics for a 6mm clip, 6, 6mm, and clip

A yellowing bit of ancient paper. Diagrams and technical jargon flow down its length.

It tells you how to make a hand-loaded 6mm clip with the following components:

1 - loose rounds
1 - empty clip

Making this would take good familiarity with craft and decent familiarity with rifles.
In the upper right corner is a note: 'First discovered by Dr. Kieral.'

It weighs about 100 grams. It is a ammunition schematic. You have no idea what it might be worth.