The former complex of the S. B. Platt Company represents one of the earliest surviving examples of a major Maryland industry. Chesapeake Bay oysters were a prized commodity, and canneries devoted to processing and shipping this valuable product proliferated in Baltimore neighborhoods with convenient water and rail access. Many plants expanded into canning fruits and vegetables during the warm months when seafood processing was discontinued. Platt started in 1865 in a two-story brick office/processing building with a one-story workroom ell on the rear. In 1900 a two-story brick addition with ground-level doors was added to move products more easily for shipping. Harbor access at the rear of the complex allowed boats to deliver oysters or produce directly to cleaning sheds. The museum now showcases the original cannery building as well as exhibits on other Baltimore industries. Outdoor displays include a restored 1942 whirly crane from the Bethlehem Steel Fairfield shipyard and the 1906 steam tugboat Baltimore, built by the Skinner Shipbuilding Company of Baltimore.