1923 Cover Aircraft Wind Tunnel Science Howard Brown Aviation Instrument SCA3 PPB1 as well as

as well as

This is an original 1929 black and white halftone print of the "Conflans

Keywords specific to this image: elevator manufacturers Vintage Advertising

This is an original 1940 black and white print ad for the Union Oil Company of California

"A Blind American Girl's Artistic Triumph

1923 Cover Aircraft Wind Tunnel Science Howard Brown Aviation Instrument SCA3 PPB1 as well asPlease note that this is a cover only. This is an original 1923 color cover for Scientific American, featuring an image of the intake end of a wind tunnel used for aircraft model testing. Please note that this image makes reference to page 88, but that page is not included in the listing. CONDITION This 88+ year old Item is rated Very Fine ++. Light aging throughout. Light wrinkling. No natural defects. No surface rub. No tears. No water damage.