This is an original 1921 one-page article (one single-sided page) of recent patents of the time. Shown is a phonograph record lifter, a revolving wing flying machine, a radio telegraphy, a magnetic deflector for electric arcs, a vision deflector, a poison tablet, a radio receiving system, a submarine vessel, and an automobile traffic signal.
This 90+ year old Item is rated Near Mint / Very Fine. Light aging throughout. No creases. No natural defects. No surface rub. No tears. No water damage.
Product Type: Original Print Article; Black / White
Grade: Near Mint / Very Fine
Dimensions: Approximately 7.5 x 10.75 inches; 19 x 27 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: Joseph Menchen, Alexis Beurrier, Edouard Bigourdan, Louis Lacoin, William Ogle Snyder, John Hays Hammond, John Paley Yorke, Ernest F. W. Alexanderson, Charles T. Davis, Joseph Kuhajda, Shigeru Masumoto