File:Leon Theremin and his etherphone.jpg
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![File:Leon Theremin and his etherphone.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/9/91/Leon_Theremin_and_his_etherphone.jpg/678px-Leon_Theremin_and_his_etherphone.jpg?20240131193402)
Size of this preview: 678 × 599 pixels. Other resolutions: 272 × 240 pixels | 543 × 480 pixels | 869 × 768 pixels | 1,158 × 1,024 pixels | 1,440 × 1,273 pixels.
Original file (1,440 × 1,273 pixels, file size: 931 KB, MIME type: image/jpeg)