DuPont Explosives promotional pipes
du Pont Explosives pipes were given out as souvenir pipes by the Explosives Department of the du Pont Company between 1912 and 1933. (Source: Debra Hughes, Curator of Collections and Exhibits, Hagley Museum and Library, Wilmington, DE USA.) The original maker is unknown.
Example du Pont Explosives pipe bowl
Example gunpowder keg with extra bands to prevent staving
Please post additional information!