Speed controller from a vintage steamship on display at the National Great Rivers Museum, located at the Melvin Price Locks and Dam on the Mississippi River in East Alton, Illinois, near St. Louis. - Illinois Farm Bureau Partners Speed controller from a vintage steamship on display at the National Great Rivers Museum, located at the Melvin Price Locks and Dam on the Mississippi River in East Alton, Illinois, near St. Louis. - Illinois Farm Bureau Partners

Speed controller from a vintage steamship on display at the National Great Rivers Museum, located at the Melvin Price Locks and Dam on the Mississippi River in East Alton, Illinois, near St. Louis.

Speed controller from a vintage steamship on display at the National Great Rivers Museum, located at the Melvin Price Locks and Dam on the Mississippi River in East Alton, Illinois, near St. Louis.