File:Time clock, 1909.jpg
Summary
| Description |
English: Time clock and In-and-Out Clock Cards, 1909. |
| Date | |
| Source | Nicholson on Factory Organization and Costs. Kohl Technical Publishing Company, 1909; p. 379 |
| Author | Nicholson, Jerome Lee. |
Licensing
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This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1931, and if not then due to lack of notice or renewal. See this page for further explanation.
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