decimal-inch

Updated: May 29, 2025

Dinner finished, he went up to the gunroom and began compiling his list. He found a yardstick, and thumbtacked it to the edge of the desk to get over-all and barrel lengths, and used a pair of inside calipers and a decimal-inch rule from the workbench to get calibers.

H. Beam Piper - Murder in the Gunroom