Properties
Uses
Permanent.
Effect
Held in direct sunlight, it throws a thread of light one inch across that cuts through 6 inches of stone, iron, or timber every 10 minutes, and through a hand's thickness of any of them in one round. It cuts nothing under cloud, in shade, by torchlight, or by moonlight.
About
Yellowed glass in a folding brass frame, hand-sized, warm on one face and cold on the other.