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Smithsonian MagazineEN

This Mysterious Combination Lock Sank in a 1583 Shipwreck. When Engineers Cracked the Code, It Clicked Open for the First Time in More Than 400 Years

A metal detectorist recovered the brass artifact from the wreck of the "Ann Francis," a merchant vessel that sank off southern Wales. Researchers used micro-CT scans to identify the four-letter combination

Nov 12, 06:22 PM

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