This Otto engine, manufactured in Philadelphia, powered a woodworking shop on Cumberland Island, Georgia. Nicholas A. Otto produced the first successful gasoline-powered internal-combustion four-cycle engine in 1876.

It was based on a principle defined by Beau De Rochas in 1862. That first

engine was the ancestor of hundreds of millions of automobile, marine and
aircraft engines.

Specifications: Bore 8.5 in., stroke 14 in., 21 hp at 240 rpm.

Accession no. 1992G44

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