A Schoenner miniature illuminating gas engine with single piston and two large flywheels; image credit on full record.
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Engine; Schoenner, Illuminating Gas Engine, Miniature, 12 inch.
A Schoenner miniature illuminating gas engine of German manufacture, circa 1875 to 1900, this single piston engine consists of two large flywheels bet... [more detail available via subscription]