File:Sommerfeld 1937 (1948).jpg
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![File:Sommerfeld 1937 (1948).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/3/36/Sommerfeld_1937_%281948%29.jpg/705px-Sommerfeld_1937_%281948%29.jpg?20230116225016)
Size of this preview: 705 × 600 pixels. Other resolutions: 282 × 240 pixels | 564 × 480 pixels | 903 × 768 pixels | 1,204 × 1,024 pixels | 1,411 × 1,200 pixels.
Original file (1,411 × 1,200 pixels, file size: 378 KB, MIME type: image/jpeg)