Behind the Lines | The Relic Hunter

Shirl Herr’s “hidden-metal detector” paved the way for the development of mine detectors used by the world’s militaries. It was late August 1929 when the black limousine pulled to the front of an Italian hotel to retrieve Shirl Herr. An American businessman, inventor, and self-educated historian, Herr had offered his assistance to the Italian government …

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