This pewter container, measuring about 3.75″ x 5″, is attributed to George Washington’s Aide-de-Camp, John Trumbull. It might have held tea or tobacco. A pen and ink sketch of George Washington can be seen on it. For source and more details, click here.
Image from: http://www.cr.nps.gov/museum/exhibits/revwar/image_gal/morrimg/tobaccojar.html