Original Garrard Centre Strobe disc to be used with a 50Hz bulb light to confirm the correct speed.
To be used both on electric and spring loaded motors (gramophones).
Speeds – 78RPM and 80RPM
Also promotes several Garrard units and accessories:
No. 11B Spring Motor
No. 30 Spring Motor
No. 20 Spring Motor
No. 10B Spring Motor