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- Armington & Sims 2-cylinder Vertical Marine Steam Engine, 1896 - This ten-horsepower vertical steam engine was likely among the last manufactured by Armington & Sims of New England before the company's bankruptcy. Advanced for its time, the engine's oversquare five-inch bore and three-inch stroke allowed it to operate at speeds up to 400 r.p.m. Reportedly, the engine was built for a yacht that was never completed.

- 1896
- Collections - Artifact
Armington & Sims 2-cylinder Vertical Marine Steam Engine, 1896
This ten-horsepower vertical steam engine was likely among the last manufactured by Armington & Sims of New England before the company's bankruptcy. Advanced for its time, the engine's oversquare five-inch bore and three-inch stroke allowed it to operate at speeds up to 400 r.p.m. Reportedly, the engine was built for a yacht that was never completed.
- Armington & Sims Steam Engine Used with Edison Jumbo Dynamo, 1882 - Edison's successful lighting experiments at his Menlo Park laboratory in 1879 bore fruit in the practical system he put into operation in New York City, at the center of which was the Pearl Street power station. This is the sole surviving engine-generator from that installation, and it was the first to go online providing power to customers on September 4th, 1882.

- 1882
- Collections - Artifact
Armington & Sims Steam Engine Used with Edison Jumbo Dynamo, 1882
Edison's successful lighting experiments at his Menlo Park laboratory in 1879 bore fruit in the practical system he put into operation in New York City, at the center of which was the Pearl Street power station. This is the sole surviving engine-generator from that installation, and it was the first to go online providing power to customers on September 4th, 1882.