Bell loco

The Bell Locomotive Works, Inc. of New York City built a variety of lightweight geared steam locos. These included side tank, saddle tank and tender types even an articulated version. All shared certain elements, including some of the practical features of the Stanley Steamer car of 1908. They all had enclosed power units, boilers wrapped in piano wire and all ran on petroleum based liquid fuels. They only took twenty minutes to raise steam so were  popular with contractors and plantation owners. 
This particular loco, built by Peter Angus, ran on the Central American banana plantations of the United Fruit Company in the early 1920s