The United States Postal Service will issue its Fort McHenry commemorative forever stamp Sept. 13 in Baltimore, Md.

Postal Service spokesman Roy Betts told Linn’s that the 11 a.m. ceremony will take place at the Fort McHenry National Monument and Historic Shrine in Baltimore.

The ceremony is part of the Star-Spangled Spectacular festival marking the 200th anniversary of The Star-Spangled Banner.

The stamp is the third issue in the War of 1812 series and will depict a scene from the 1814 Battle of Baltimore.

The stamp will show soldiers manning a cannon in defense of the fort. The design has not been revealed by the Postal Service.

The conflict at Fort McHenry inspired Francis Scott Key to compose the lyrics for what would become The Star-Spangled Banner.

The stamp is expected in a pane of 20 with decorative selvage on the right side.