12-Pounder Rifled Boat Howitzers in Bladensburg, Maryland
Two US Navy 12-Pounder (3.4-Inch) Rifled Boat Howitzers are displayed at Fort Lincoln Cemetery in Bladensburg, Maryland. A nearby historical marker states that they are displayed in the earthworks of Fort Lincoln - an earthworks fortification built in 1861 as part of the network of defenses of Washington. The site is also near that of the War of 1812 Battle of Bladensburg. The two rifles are displayed on the remnant of Army type carriages rather than the naval landing carriages or boat carriages that they would have been mounted on in service.
The French 36-Pounders of Fort McHenry
A French 36-Pounder, representing those taken from the French ship of the line Éole and used to arm Fort McHenry during the war of 1812, is displayed at Fort McHenry. Éole reached Annapolis after being dismasted in a storm in 1806. This French battleship saw no further service, and it was broken up in Maryland several years later.
The Dahlgren Guns of the United States Naval Academy
Among the historic cannons preserved at the United States Naval Academy are a Dahlgren Rifle and a 12-Pounder Dahlgren Boat Howitzer. This post also looks at a Civil War era photo of heavy cannons at Annapolis.
USS Constellation - Sloop of War of the United States Navy
USS Constellation is the last sailing only ship designed for the US Navy in 1854. She is also the only intact US Navy ship which saw active cruising service during the American Civil War. She is preserved at Baltimore.
The 30-Pounder Parrott Rifle at Federal Hill Park
A US Navy 30-Pounder Parrott Rifle is mounted at Federal Hill Park in Baltimore, Maryland
The Rodmans of Fort McHenry
Displayed at Fort McHenry near Baltimore, Maryland are three types of Rodman guns: 8-Inch Smoothbores, 8-Inch Rifles converted in the 1870s from 10-Inch Smoothbores, and 15-Inch Smoothbores. Taken together this is an impressive display of the Rodman type gun of the US Army during and after the American Civil War.