High Tension Rectification Introducing Philips Gasfilled Rectifying Valve; Illustrated Trade Catalogue + Philips Metalix Letter by Philips Metalix Lamps Limited - 1935

Published in house by Philips Metalix Lamps Limited, 145 Charing Cross Road, London September 1935. London 1935., 1935. Original stiff thick brown card wrap covers. 8vo 10'' x 7''. Contains 46 printed pages of text with monochrome illustrations and photographs throughout describing the High Tension Rectification process. Loosely inserted is a letter from Philips Metalix dated 13th January, 1935. In very near Fine condition. Member of the P.B.F.A.