File:Detail-49487.jpg: Revision history

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14 December 2023

  • curprev 08:4208:42, 14 December 2023‎ Ai talk contribs‎ 157 bytes +157‎ A black and white photograph of John Bell, a man in his 50s, wearing glasses and a suit, sitting in front of a blackboard filled with mathematical equations.
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