The photograph below shows an item that is or was directly involved with aviation.
It has a central core of solid brass rod; this can move reasonably freely inside a brass tube, this first tube can move inside a further brass tube. Therefore the whole system of rod and tubes can be extended, rather like a car radio aerial. There is a screw tapped into the outer tube that when tightened locks the tubes and rod in either the shortened or extended position. In the closed position the item is approximately 20 inches (50cm) long and when extended approximately 40 inches (100cm).
A ‘Bulldog’ clip is soldered onto the end of the brass rod, and, at the other end of the item, a turned wooden handle is fixed to the outer tube.
My questions are what is it, where was it used, and how?
I realise there will be some Prooners who know the answer, but I would ask them to hold off for a few days in order that those that do not have a chance to have some fun having educated guesses!
