File:PSM V70 D233 Early telephone switchboard.png
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Size of this preview: 800 × 546 pixels. Other resolutions: 320 × 218 pixels | 640 × 436 pixels | 1,024 × 698 pixels | 1,280 × 873 pixels | 1,723 × 1,175 pixels.
Original file (1,723 × 1,175 pixels, file size: 316 KB, MIME type: image/png)