2022Elstob AuctioneersA VINTAGE VERNIER MICROSCOPE, BY PHILIP HARRIS & CO LTD, BIRMINGHAM, brass and cast iron with a woodSee Sold Price
2022Claydon Auctioneers LtdA c1940s Galvanometer light scale by Philip Harris Ltd, Birmingham. Approx. 17 1/2" high x 22" wideSee Sold Price