12 Pound Bormann Case Shot Fused Artillery Shell - Deactivation drill hole at bottom. Nice Bormann fuse present.
Federal Spherical “12 Pound Bormann”
DIAMETER: 4.52 inches
GUN: 12-pounder smoothbore, 4.62-inch caliber
WEIGHT: 9 pounds 4 ounces
SABOT: Wooden cup (missing)
FUZING: Bormann time fuze
The artillerist used a metal punch to pierce the thin metal at the desired time marking. This exposed a section in the horseshoe-shaped horizontal powder train. When the cannon discharged, the flame from the explosion ignited this powder train.