It says:
Grado Stylus Gauge
The two dimples above the penny are the pivot point. It was inside an old Dust Bug box along with three pennies dated '64 '66 and '68, so I assume it got used.
For now I think I'll stick with my Shure Force Gauge.
Grado Stylus Gauge
- Set Gauge on Record
- Place Coins On Gauge
- Adjust Tone Arm To Balance Gauge
- 2 Pennies = 1 Gram
- Each Additional Penny = 1 Gram
- 4 Pennies = 3 Gram
The two dimples above the penny are the pivot point. It was inside an old Dust Bug box along with three pennies dated '64 '66 and '68, so I assume it got used.
For now I think I'll stick with my Shure Force Gauge.