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| File information | |
| Filename: | us0d0006987-001.jpg |
| Keywords: | Philadelphia / Pennsylvania / Francis D. Pastorius / M. Daniel Connolly / Keystone / Shield / Stars |
| Inventor's Name: | Thomas G. Cook |
| Patent Date: | November 11, 1873 |
| Pattern Name/Number: | Unknown |
| Original Manufacturer: | Unknown |
| Date added: | Apr 21, 2019 |