Stan Tyrer wants to know more about a Febson Indicator.
Stan wrote:
I have recently bought a small brass tool named as a Febson test indicator. Despite extensive searching, I cannot find out what this tool was used for. Can you help?
Best wishes
Stan Tyrer
Andy Tuckwell found a photo of the instructions
and then noticed it in the 1935 Buck and Hickman catalogue, which confirmed its use:
Any more information, pictures or usage tips are welcome.