Government expert listens to broadcasts of automobile [...] The Automotive Section of the Bureau of Standards is studying the anti-knock proportion of fuel used in automobile and aircraft engines and the scientist in this photograph is listening in to the signals of an engine instead of listening to a radio broadcasting station. Eventually, these studies may evolve a new engine, one that will use fuel more economically and efficiently Abstract/medium: 1 negative : glass  4 x 5 in. or smaller

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Size: 3936px × 5081px
Photo credit: © Alpha Stock / Alamy / Afripics
License: Licensed
Model Released: No

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