Jewelry & gold · a closer look
Helm & Hahn Co. mark: 10K HH
Mark details
- Maker
- Helm & Hahn Co. →
- Period
- Undated
- Wording
- 10K HH
- Place
- Pittsburgh PA, United States
Dating cue
Recorded circa 1934, 1943 and 1950.
Notes
h, h h, hh, trade mark
Jewelry & gold · a closer look
Recorded circa 1934, 1943 and 1950.
h, h h, hh, trade mark