The Signaling Mirror: WWII US Government Training Film

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This teaches how to aim a two-sided emergency signaling mirror. This August 1943 US Government Training film is a digitized version of the US National Archives copy. Later testing proved retroreflective ("reflex") signal mirror aimers were more accurate, and the US services changed to that type of emergency signal mirror, but two-sided mirrors are still found in many liferaft kits. They are also the type sold for decades as the official US Boy Scout signal mirror, and the type typically made by Varsity Scouts in their "Operation on Target" event.

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