456x9, Rearrangment of Service Water Piping (Pump Suction) (3 copies), 1942-1943

This collection of the Cos Cob Power Plant contains records ranging from 1903 to 2002. Arranged into 4 series, the bulk of the collection consists of blueprints and wiring diagrams for the electrical systems that provided power to the New York, New Haven & Hartford Railroad.

Administrative Records are arranged by sub-series General Administrative, Operational Records, Power Problems, Publications, Substation Information,and Site Plans dated as recently as 1995.

Parts Information and Instructions booklets are included and represent mostly Westinghouse parts and components, along with a few GE parts, and general instructions for the plant.

A small amount of photographs and a photo album belonging to Roger Nichols (album dated 1904-1920) represent the Photograph series.