This pearl handle gadget which appears to be for measuring something, belonged to my granddad. It was in his gardening box with his raffia and pruning shears but appears to delicate to be a gardening item. His occupation was a moulder in the iron works, so it certainly is to delicate to be a tool of that trade. We recently took it to the museums antique valuation event, just to find out what it was, however for once the dealer was baffled, he had never seen one before. Does anyone know what it is?