Pocket Watch Database
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https://pocketwatchdatabase.com/search/result/robert-h.-ingersoll-bros/auth/login
Access Date: June 28, 2024
Available data for Robert H. Ingersoll & Bro. is limited. Please consider uploading photos of your watch after adding it to your collection to help us improve the database.
From the American Horology Archive:
Robert H. Ingersoll & Bro.
Grade: auth
| Manufacturer: | Robert H. Ingersoll & Bro. |  |
| Manufacturer Location: | New York, New York | |
| Movement Serial Number: | Unserialized | |
| Grade: | auth | |
| Estimated Production Year: | 1892 | |
| Case: | Various | |
| Database Version: | v52.350 | |
Please note that many times, movements were not finished in sequential order. As a result, the production years provided are estimates, and a margin of error +/- 5 years is expected.