12 Ga. F, Winchester, Tracer #8 Shot, One Cartridge not a Box

Description

One Cartridge not a Box: 12 Gauge TRACER! Shot-shell by Winchester / Western /Olin Co. Using a Red translucent plastic case with “WINCHESTER” or “MADE IN USA” No 12 RANGER” Head-Stamp and “WINCHESTER Western 8 TRACER LOAD (MARK 5)” printed in the case. Sold as a display collectible only.

A very short story on shot-shells, in case you are not familiar with them, :
Shot-Shells have been produced for over 2 centuries in many sizes, from 00 gauge to .360 gauge  and also in millimeters sizes.
For those not familiar with shot-shells the lower the gauge number the larger the size, example: a 20 gauge is smaller then a 16 gauge, a 16 gauge is smaller then a 12 gauge etc.
A gauge is a unit of measurement in shotguns, determined by the number of lead balls the size of the gun’s bore (inside barrel diameter) that can be produced out of a pound of lead. A 20 gauge gun size has 20 balls per pound, a 12 gauge has 12 balls, hence the smaller the gauge number the large the bore or size of the shell