This is an original 1920 one-page article (one single-sided page) of the latest patents of the time. Shown is the multi-record phonograph, the phonograph vibration device, an oxygen and hydrogen generator, an electrically driven clock, a controlling field of magnets, a reading light, an electric oven, a spark plug tester, colored moving pictures and a magnetic compass.
CONDITION
This 91+ year old Item is rated Near Mint / Very Fine. Light aging throughout. Light wrinkling. No natural defects. No surface rub. No tears. No water damage.
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Product Type: Original Print Article; Black / White
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Grade: Near Mint / Very Fine
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Dimensions: Approximately 7.25 x 10.5 inches; 18 x 27 cm
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Authentication: Serial-Numbered Certificate of Authenticity w/ Full Provenance
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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: Gustave Miller, Robert G. Brown, Mervyn O'Gorman, Henry E. Warren, H. S. Folker, D. M. Birdstrup, Charles S. Burton, Frank M. Sutton, Ernest I. Bass, C. Raleigh, W. V. D. Kelley, Charles H. Colvin
SI1A6C20