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New Wireless Portable Phone
This is an original 1920 one-page article (one single-sided page) on how F. O. Read has invented a wireless telephone instrument indeded for the reception of wireless telephone and telegraphic messages.
This 91+ year old Item is rated Near Mint. Light aging throughout. Light creasing. No natural defects. No surface rub. No tears. No water damage.
Keywords specific to this image: Perimenter, Ohms, Radio Signals, Electrical Engineering