![Scientists for Uncle Sam awarded Magellan Gold Medal. Dr. L.J. Briggs, left, Assistant Director and Dr. Paul R. [Heyl?], Chief of the Sound Section of the United States Bureau of Standards, with the first successful experimental model of the earth inductor compass, which they developed for the Army](https://thumbs.arkivism.com/loc-2016888398.jpg)
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Scientists for Uncle Sam awarded Magellan Gold Medal. Dr. L.J. Briggs, left, Assistant Director and Dr. Paul R. [Heyl?], Chief of the Sound Section of the United States Bureau of Standards, with the first successful experimental model of the earth inductor compass, which they developed for the Army
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Credit lineScientists for Uncle Sam awarded Magellan Gold Medal. Dr. L.J. Briggs, left, Assistant Director and Dr. Paul R. [Heyl?], Chief of the Sound Section of the United States Bureau of Standards, with the f. 1927-01-01. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.
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