1920 Article Wireless Portable Telephone F. O. Read Message Transmitter SI1

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. CONDITIONThis 91+ year old Item is rated Near Mint. Light aging throughout. Light creasing. No natural defects. No surface rub. No tears. No water damage. Product Type: Original Print Article; Black / White Grade: Near Mint Dimensions: Approximately 7.25 x 4.75 inches; 18 x 12 cm Authentication: Serial-Numbered Certificate of Authenticity w/ Full Provenance Protection: Packaged in a custom archival sleeve with an acid-free black board (great for display, gift-giving, and preservation) Keywords specific to this image: Perimenter, Ohms, Radio Signals, Electrical EngineeringSI1A6C20