This is a tug and barge set from Keystone. The tug measures 4 7/8 x 7.75 x 2 5/8 and the barge is 3.5 x 11.75 x 4 5/8. The roof of the barge is removable and the cabin is made of Masonite. At purchase it was mentioned that the set was from 1949. This seems reasonable but I have yet to see anything to confirm the production years.
From the collection of Harry Abel.