Bolinders Company Ltd. .. .. .. .. .. .. .. 485 Cogswell & Harrison Ltd 485 C.A.V. Ltd. .. .. .. .. .. .. Inside back cover Camper & Nicholsons Ltd. .. .. .. .. .. .. 473 Coastal Radio Ltd 478 Henry Browne & Son Ltd. 477 Dagenite Batteries Ltd 478 M. G. Duff Marine Ltd. 477 Gardner Engines (Sales) Ltd. .. .. .. .. Inside front cover Groves & Guttridge Ltd 477 Morse Controls Ltd. 485 Parsons Engineering Co. Ltd Back cover The Pyrene Company Ltd 477 University Marine Ltd 473 WatermotaLtd 478 Yachting & Boating 501.