schematics for heat-resistant metal, aka schematics for heat-resistant metal, schematics, heat, resistant, and metal
A diagram showing how best to use some heat-resistant materials to create a machine's skeleton.
It tells you how to make a heat-resistant metal with the following components:
Making this would take some familiarity with craft, some familiarity with science, and decent familiarity with brains.
In the upper right corner is a note: 'First discovered by Dr. Zaylin.'
It weighs about 100 grams. It is a electromechanical schematic. You think it might fetch about $2 on the market.