| Source: The Printing Trades Magazine, 1909-1915 (incomplete run) Location: St.L. / 05 / P936 | |
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| Last Name: | Kroll |
| First Name: | Robert |
| Middle Name: | C. |
| Address: | 5147 Cates Ave. |
| Advertisement: | yes |
| Volume: | VI |
| Issue: | 6 |
| Date of Publication: | June 1914 |
| Page: | 2 |
