![File:John Backus at control panel at60-inch cyclotron.jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/0/0a/John_Backus_at_control_panel_at60-inch_cyclotron.jpg/750px-John_Backus_at_control_panel_at60-inch_cyclotron.jpg)
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current | 06:23, 2 February 2023 | ![]() | 3,000 × 2,400 (1.86 MB) | LittleDwangs | Uploaded a work by Donald Cooksey, Lawrence Berkeley National Laboratory from [https://catalog.archives.gov/id/7665007 John Backus at control panel at60-inch cyclotron. Cooksey 15-28, March 1, 1939. (Photographer: Donald Cooksey)], U.S. National Archives and Records Administration with UploadWizard |
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