Jewelry & gold · a closer look
Coro Jewelry mark: Coro Duette / PAT. NO. 1798867
Mark details
- Maker
- Coro Jewelry →
- Period
- Undated
- Wording
- Coro Duette / PAT. NO. 1798867
- Type
- stamped
Dating cue
The line name and mechanism patent are stamped on the removable brooch frame.