This is a large Keystone Cargo Barge and Tug. It is new old stock produced before 1953. The tug is 8″ by 2.75″ and the barge is 11.75″ by 4.75″ and 4″ high. The doors on both sides open in a groove that is cut the length of the barge. The set is new old stock with the box.
From my private collection.