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Archaeologists crack a shipwreck’s 400-year-old combination lock
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Archaeologists crack a shipwreck’s 400-year-old combination lock

Researchers at Cardiff University and Amgueddfa Cymru have unlocked a 16th-century brass combination lock recovered from the Ann Francis shipwreck - without touching its delicate mechanism. Micro-CT scans revealed the inner workings and showed that the four-letter code is ANCE. The ship sank off southern Wales in 1583, and its wreck has yielded more than 800 gold and silver coins alongside other artifacts. Now, with this centuries-old puzzle solved, researchers are wondering what the code meant to its original owner.
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