We noticed that you're using an unsupported browser. The TripAdvisor website may not display properly.
We support the following browsers:
Windows: Internet Explorer, Mozilla Firefox, Google Chrome. Mac: Safari.
£20 Amazon.co.uk Gift Card Get yours when you book a hotel on TripAdvisor and review your stay!

Photo: “Tiny machine model by John Aschauer”

From Review: Intriguing museum if you... of American Precision Museum