File:People attending UM physics symposium pose for group photo Summer 1931.jpg
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Size of this preview: 800 × 561 pixels. Other resolutions: 320 × 224 pixels | 640 × 449 pixels | 1,024 × 718 pixels | 1,280 × 897 pixels | 2,560 × 1,795 pixels | 7,856 × 5,507 pixels.
Original file (7,856 × 5,507 pixels, file size: 5.25 MB, MIME type: image/jpeg)