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Leonard Fuller's notes read, "When IT&T [International Telephone and Telegraph Corporation] decided to move Federal Co. Manufacturing from Palo Alto to Newark, New Jersey circa 1930, I decided to personally preserve this original arc [Cyril] Elwell brought from Denmark as well as the first little arc of this size or smaller made in Palo Alto, so I had dummy magnet coils made for this arc and had this photo taken for record purposes for Federal Co. files. I kept this arc and the other small one from about 1930 to 1953-55 when I gave them to Elwell to give to the Perham collection. 5/14/65." From a binder of Federal Telegraph Company material created by Leonard Fuller circa 1965.
Federal Telegraph Company Arc converter Electric arc (LCSH) Poulsen Arc Transmitter Poulsen Wireless Corporation Poulsen Wireless Telephone and Telegraph Company