Three miniature oscillating steam engines (all operational) share a wooden display base. These engines were built by Scotty Hewitt, and each demonstrates a different action. The engines on the left and right are double-acting steam engines, while the one in the middle is a single-acting steam engine.

Exhibit added: August 14, 2008 - Last modified: June 22, 2023

Presented by The Joe Martin Foundation for Exceptional Craftsmanship