The Edison 1,500 light 110 volt steam dynamo called the "Jumbo", installed in 1882 at Holborn Viaduct station and Pearl Street Station, New York City, the first Edison X Public Electric Power Stations.

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: The Edison 1,500 light 110 volt steam dynamo called the "Jumbo", installed in 1882 at Holborn Viaduct station and Pearl Street Station, New York City, the first Edison X Public Electric Power Stations. Wellcome Collection. Source: Wellcome Collection.