McCoy Tuning Forks
This set of 2 tuning forks was manufactured by McCoy, possibly during
The two tuning forks appear to be made out of aluminium.
Tuning forks have been used for a lot of years in hearing testing and
indeed are still used today for the same purpose.
Tuning forks are used to give the Rinne and Weber tests which help
determine whether a person has a conductive or sensorineural hearing