| Source: The Printing Trades Magazine, 1909-1915 (incomplete run) Location: St.L. / 05 / P936 | |
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| Last Name: | Zumsteg |
| First Name: | Henry |
| Volume: | IV |
| Issue: | 6 |
| Date of Publication: | June, 1912 |
| Page: | 9, 15 |
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