Pocket Watch Database
| Source: | The Jewelers' Circular and Horological Review, Volume 23 |
| Published: | 1891 |
| Page: | 35 |
| Tags: | Keystone Standard Watch Co., Factory, News, Aurora Watch Co. |
| Source: | The Jewelers' Circular and Horological Review, Volume 23 |
| Published: | 1891 |
| Page: | 27 |
| Tags: | Chas. D. Rood, Aurora Watch Co., Factory, News |