# CT scans reveal four-letter code to 400-year-old lock from Welsh shipwreck

- Source: Phys.org - latest science and technology news stories
- Published: 2026-11-04T14:20:05+00:00
- Category: Science
- Original: https://phys.org/news/2026-11-ct-scans-reveal-letter-code.html
- Canonical: https://groundlevelnews.com/story/ct-scans-reveal-four-letter-code-to-400-year-old-lock-from-welsh-shipw-161a4b/

Experts from Amgueddfa Cymru and Cardiff University have used cutting-edge CT scanning technology to unlock a centuries-old combination lock recovered from one of Wales' most remarkable maritime discoveries.

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