The Brandywine flag was a banner carried by Captain Robert Wilson's company of the 7th Pennsylvania Regiment

7th Pennsylvania Regiment

The 7th Pennsylvania Regiment was raised January 4, 1776 at Carlisle, Pennsylvania for service with the Continental Army. The regiment would see action during the Battle of Brandywine, Battle of Germantown, Battle of Monmouth and the Battle of Springfield...

. The company flag received the name after it was used in the Battle of Brandywine

Battle of Brandywine

The Battle of Brandywine, also known as the Battle of the Brandywine or the Battle of Brandywine Creek, was fought between the American army of Major General George Washington and the British-Hessian army of General Sir William Howe on September 11, 1777. The British defeated the Americans and...

, 11 September 1777. The flag is red, with a red and white American flag image in the canton.

Other stories indicate that the flag may have actually flown earlier, at the Battle of Cooch's Bridge

Cooch's Bridge

Cooch’s Bridge, located at Old Baltimore Pike, Newark, Delaware, is the site of the historic Battle of Cooch’s Bridge.-Battle of Cooch's Bridge:Fought on September 3, 1777, the Battle of Cooch's Bridge has two principal distinctions...

 in Delaware

Delaware

Delaware is a U.S. state located on the Atlantic Coast in the Mid-Atlantic region of the United States. It is bordered to the south and west by Maryland, and to the north by Pennsylvania...

 on 3 September 1777. Captain Wilson may have also brought it to the Battle of Paoli on 21 September and the Battle of Germantown

Battle of Germantown

The Battle of Germantown, a battle in the Philadelphia campaign of the American Revolutionary War, was fought on October 4, 1777, at Germantown, Pennsylvania between the British army led by Sir William Howe and the American army under George Washington...

 on 4 October.

The 7th Pennsylvania Flag may have been one of the first American flags to feature stars and stripes, although it was a militia company's flag, not a flag of Washington's army. The Flag Resolution of 1777 defined the official flag of the United States as having 13 stripes and 13 stars, although the actual pattern of the stars was not specified. Many variations existed. The flag shown in the canton of the Brandywine Flag uses a 4-5-4 star pattern, and was probably patterned after a real United States flag.

The Brandywine Flag is currently displayed in Philadelphia's Independence National Historical Park

Independence National Historical Park

Independence National Historical Park is a United States National Historical Park in Philadelphia that preserves several sites associated with the American Revolution and the nation's founding history. Administered by the National Park Service, the park comprises much of the downtown historic...

, and was featured on a 33¢ postage stamp issued in 2000, as a part of the US Postal Service's

United States Postal Service

The United States Postal Service is an independent agency of the United States government responsible for providing postal service in the United States...

Stars and Stripes series.
The colors and pattern on the stamp may have been altered for aesthetic purposes.