Edwardian Set of Avoir Standard Weights for The City of Liverpool by W&T Avery Dollond Patent controversy they were close to failure

they were close to failure

A long brass pointer transfers the movement of the hair up to a central silvered scale plate measuring 30 to 100 degrees of humidity

The silk is threaded to two brass plates which serve to attach the fan to the base and keep it rigid

One of these patents he was engaged in perfecting at the time of his death

silver and steel frames for spectacles

Edwardian Set of Avoir Standard Weights for The City of Liverpool by W&T Avery Dollond Patent controversy they were close to failureFor sale, an Edwardian set of Avoir Imperial Standard Weights for The City of Liverpool by W&T Avery. The set includes all county standard Avoir Weights with 50lb, 20lb, 10lb & 5lb all clearly engraved to the top face and with the Avoir unit of measurement engraved below. Each weight has the manufacturer's name of W&T Avery Ltd, Birmingham to one side, with the other reserved for the indenture mark of 990 and City of Liverpool for whom they were made.