PCAD - Images for the building Federal Telegraph Company, Research Laboratory and Factory #2, Downtown North, Palo Alto, CA

Exterior view of the Federal Telegraph Company Building #2, Palo Alto, c. 1920; from The Perham Collection of Early Electronics at History San Jose, "Federal Home in Palo Alto"

Exterior view of the Federal Telegraph Company Factory and Laboratory, Palo Alto, c. 1922. From the Western Historic Radio Museum, "Radio Boulevard" web site