This one-of-a-kind unit spent its time at the Niskayuna, test facility and then at Schenectady as a shop switcher (#6).
The British Rail Class 97/6 0-6-0 diesel shunting locomotives were purpose-built for departmental duties by Ruston & Hornsby at Lincoln in 1953 (97650) or 1959 (97651-654).
With Rosi-Clare's departure, a new EMD SW1 switcher would later be purchased from the former Sahara Coal Company as a replacement.
PRR E44, an American electric road switcher locomotive built for the Pennsylvania Railroad
After withdrawal in 1966, it was sold to a scrap metal company in Long Marston, which used it as a yard shunter for a further three years, after which it was scrapped.
The term "road switcher" is not used in Germany either, but there are some types of heavy shunters suited for those tasks and used for them, like the DB Class V 90 and the Voith Gravita.
Locomotives that once operated the tourist trains until 2005 consist of original plantation-era Plymouth Locomotive Works diesel switcher engines which range from five 18-ton engines to three 40-ton locomotives.