Pocket Watch Database
Hagstoz & Thorpe
Philadelphia
Initial Marking: H&T
Location: Philadelphia
Years of Operation: 1875-1883
Successor: C.N. Thorpe
Manufactured gold-filled cases using the James Boss patent.
Case Grades
Note: This chart is not intended to be a comprehensive list of grades. Some grades changed traits over time and other grades may not be listed. This chart will be improved as additional information is studied.
| Image | Name | Case Material | Gold Content | Gurantee | Source Catalogs | Trademarked |
|---|---|---|---|---|---|---|
 |
Boss Patent | Gold-Filled | 20-Year | 1878CYC, 1880GHR, 1882SFM, 1883GHR |
