The light to work with
Subtitle: Duplex-a-lite
By: Philadelphia Electric Company Supply Dept.
Publisher: The Company
Published: 1920
Place of publication: Philadelphia
Language: eng
Number of pages: 12
Subjects: Catalogs; Electric light fixtures; Office buildings; Lighting; Philadelphia Electric Company. Supply Department
Other titles: Duplexalite.
Notes: Statement of responsibility from p. [6].