File:Keypunching 1940s census.jpg
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![File:Keypunching 1940s census.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/c/ce/Keypunching_1940s_census.jpg/745px-Keypunching_1940s_census.jpg?20170718024255)
Size of this preview: 745 × 599 pixels. Other resolutions: 298 × 240 pixels | 597 × 480 pixels | 955 × 768 pixels | 1,273 × 1,024 pixels | 2,545 × 2,048 pixels | 2,948 × 2,372 pixels.
Original file (2,948 × 2,372 pixels, file size: 1.29 MB, MIME type: image/jpeg)