This 4-4-0 American was built for passenger service in 1873 for the Boston & Albany, It is the sole surviving example of an "Eddy Clock" locomotive, named after it's designer, Wilson Eddy, the Master Mechanic of the B&A, The "Eddy Clock" has no steam dome. Instead, two "steam cannons" released pressure from the boiler. The box atop the boiler is a sand box. In all, 100 were produced, with #39 being leased to the New York Central & Hudson River Railroad in 1889 before being donated to Purdue University in 1908 and eventually the MOT in 1951.