1943 Ad Bell Telephone Systems High Vacuum Tube Wartime H.D. Arnold WWII YPM1 YTB2 This is an original 1925

This is an original 1925 six-page color print catalog (three double-sided pages

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This is an original 1963 color with metallic ink print of Saint John the Forerunner in the Desert (Ioann Predteca Na Pustyne)

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This is an original 1927 black and white halftone print of a M'Gogo man of Africa

1943 Ad Bell Telephone Systems High Vacuum Tube Wartime H.D. Arnold WWII YPM1 YTB2 This is an original 1925This is an original 1943 black and white and grayscale print ad for the Bell Telephone Systems, featuring the first effective high vacuum tube, for amplifying electric currents developed by Bell Laboratiries and Dr. H. D. Arnold. CONDITION This 70+ year old Item is rated Very Fine +. No creases. No natural defects. No surface rub. No tears. Heavy water stain bottom. Product Type: Original Print Ad; Black & White Grayscale Grade: Very Fine +