This is an example of
the long-pattern 20-pounder (3.67-inch caliber) Parrott projectile. The long-pattern
Parrott projectiles are common shell and do not contain any case-shot material. A large
number of this style projectile were fired during the 1864 Atlanta Campaign. This pattern
is also found with a wrought iron ring sabot, therefore, would be considered a
Read-Parrott projectile pattern.
