A black and white photo of Enrico Fermi standing at a blackboard, explaining a scattering problem. He is wearing a charcoal wool three-piece suit, with a striped tie and a light-colored shirt. Fermi is looking to the right of the photographer, smiling at someone in the audience.
https://files.mastodon.social/media_attachments/files/111/149/847/174/202/928/original/8212147070f52b8d.jpeg