| Source: The Western Watchman Golden Jubilee Edition, 1865-1915 (St. Louis: Western Watchman, 1915) Location: Oversize / St.L. / 282 / W52 | |
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| Corporate Name: | Keys Piston Ring Co. |
| Address: | 3050 Olive St. |
| Advertisement: | yes |
| Page: | 40 |
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