| Source: The Printing Trades Magazine, 1909-1915 (incomplete run) Location: St.L. / 05 / P936 | |
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| Last Name: | Hertenstein |
| First Name: | Charles |
| Portrait: | Yes |
| Volume: | VII |
| Issue: | 6 |
| Date of Publication: | June, 1915 |
| Page: | 7, 8, 12 |
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