Cryptic padlock from a 400-year-old shipwreck finally opened — but it leaves a mystery
Image supplied with the source report: Livescience.

Researchers used CT scans to crack a 400-year-old code and open a mysterious padlock that washed up in Wales with the Ann Francis treasure hoard.

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This is a source-linked briefing. Read the original report from Livescience .

Science archaeology Livescience