British "24-pounder" mortar shell from a battlefield in Savannah, Georgia, American Revolutionary War period (ca. 1780). 13 lb 10 oz, 5-1/2" in diameter. Heavy but hollow, with hole in side for inserting powder, a type of shell fired by British Royal mortars and 5-1/2" howitzers, minor surface pitting and rust but still quite stable. With photo-certificate.
Estimate: $300 - 450