| Source: The Printing Trades Magazine, 1909-1915 (incomplete run) Location: St.L. / 05 / P936 | |
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| Last Name: | Warrington |
| First Name: | John |
| Middle Name: | G. |
| Volume: | V |
| Issue: | 5 |
| Date of Publication: | May, 1913 |
| Page: | 13-14 |
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