RARE – Revolutionary War 18-pounder cannonball, recovered in the Philadelphia area (SOLD)

Being offered is a rare Revolutionary War 18-pounder solid-shot cannonball. It has a diameter of approximately 5” and weighs 15-pounds, 11-ounces, a typical British size.  During the Revolution both sides made extensive use of artillery and 18-pounder cannons from both forts and ships. This ball was recovered years ago from the area of Philadelphia near Fort Mifflin.

It was originally called Fort Island Battery and later Mud Island Fort and was built between 1771 and 1776. It was strategically important for controlling access to Philadelphia via the Delaware River. During the British occupation of Philadelphia, Fort Mifflin became a key target for the Royal Navy, which needed to resupply their troops.

The fort endured a heavy bombardment, and while ultimately evacuated, the valiant defense of Fort Mifflin bought time for Washington's troops to regroup at Valley Forge.

Pennsylvania played a significant role during the Revolutionary War, particularly in 1776 and 1777. It served as a staging ground for Continental Army troops and a temporary location for military activity in the area surrounding Philadelphia.

While the British achieved a strategic victory by seizing the city, the campaign also had significant consequences for the war, including contributing to French recognition of the United States and the harsh winter encampment of the Continental Army at Valley Forge.

This cannonball is in very nice condition with no chipping or flaking, indicative of an early recovery. This is only the second cannonball I had from the Philadelphia area – it is now so built up that any surviving relics are very difficult to come by.