File:Punchcards 1910.jpg
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![File:Punchcards 1910.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/4/43/Punchcards_1910.jpg/491px-Punchcards_1910.jpg?20170718030935)
Size of this preview: 491 × 599 pixels. Other resolutions: 197 × 240 pixels | 393 × 480 pixels | 629 × 768 pixels | 839 × 1,024 pixels | 1,931 × 2,356 pixels.
Original file (1,931 × 2,356 pixels, file size: 660 KB, MIME type: image/jpeg)