Federal

Spherical

 

DIAMETER:  12.8 inches
GUN:  13-inch Mortar
LENGTH:  -
WEIGHT:  About 208 pounds
CONSTRUCTION:  Shell
SABOT:  None
FUZING: Wooden Mortar Fuze, missing.
The largest mortar projectile used by land forces and from ships.  The "Dictator" fired this type of projectile into the Confederate Defenses of Petersburg.  The Confederates did not manufacture or use this caliber of mortar projectile.