Revolutionary War Battle of Ft. Mifflin Dug Cannon Ball Rare

Revolutionary War Battle of Saratoga Dug 8 lb Cannon Ball.  Weigh 7 lbs and 11 oz and is 3.8 in. across. 
 
 During the American Revolutionary War, the British Army bombarded and captured the fort as part of their conquest of Philadelphia in autumn 1777.  After the defeat of Washington at the Battle of Brandywine, the British took control of Philadelphia in September 1777 during their Philadelphia Campaign. The British forces then laid siege to Fort Mifflin and Fort Mercer in early October 1777, unsuccessfully attacking the latter by land and river in the Battle of Red Bank on October 22. The British Army intended the siege to open up its supply line via the Delaware River. Captain John Montresor, earlier designer and constructor of Fort Mifflin, planned and built the siege works used against Fort Mifflin. He then led the siege and destroyed much of the fort. During the siege, four hundred American soldiers held off more than two thousand British troops and 250 ships until 10 November 1777, when the British intensified their assault, launching an incessant barrage of cannonballs into the fort. Defending the riverway Commodore John Hazelwood with a sizable fleet of galleys, sloops, and fire-vessels launched several raids on British positions on shore, constantly harassing British river operations while patrolling the waters around the fort. On 15 November 1777 the American troops evacuated the fort. Their stand effectively denied the British Navy free use of the Delaware River and allowed the successful repositioning of the Continental Army for the Battle of White Marsh and subsequent withdrawal to Valley Forge. Fort Mifflin experienced the heaviest bombardment of the American Revolutionary War. The siege left 250 of the 406 to 450 men garrisoned at the Fort Mifflin killed or wounded. Comrades-in-arms ferried these dead and wounded to the mainland before the final evacuation. Fort Mifflin never again saw military action