Ruling engine
- maker:
- Otto Hilger
Ruling engine, made by Otto Hilger for the late Lord Blythswood, 1888-1897. Nut for engine acquired from NPL in Nov 1979.
Ruling engine, made by Otto Hilger for the late Lord Blythswood, 1888-1897. Nut for engine acquired from NPL in Nov 1979.