Train Hook used on the Wisconsin Rail Car (IMAGE) University of South Florida Caption 3D-printed replacement of a train hook used on the Wisconsin, in which toured with the Ringling Bros. and Barnum & Bailey Circus in the early 1900s. Credit University of South Florida Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.