Manufacturer
W. G. Pye and Co Ltd A & J Main and Co. Ltd A E Co. Ltd A. C. Wells & Co. Ltd AB Seffle Motorverkstad Abbott and Co. Ltd Abbott, W. ACE Trailers Admiralty Advance AEI Ailsa Craig Motor Co. Ltd. Air Ministry Air Pumps Ltd AJS Motorcycles Ltd Albin Motor Albion Motors Alexander Shanks & Son Ltd Alfred Graham & Co Ltd, Halifax. Alfred Wiseman and Co. Ltd All British (Engine) Co Ltd Allen Gwynnes Pumps Ltd Allen Oxford Alley & MacLellan Allied Ironfounders Ltd Allis Chalmers Amberglow American Steam Gauge Amperite Andreas Stihl AOR Aptel Marine Archbutt, L. & Mountford Deely, R. Armstrong Armstrong Siddeley Motors Ltd Arnold, A. Arthur Lyon and Co Ltd Ashton, Frost and Co. Ltd Associated British Oil Engines Ltd Associated Manufacturers Associated Manufacturing Co Associated Motorcycles Ltd Assorted Journalists and Machinists ATCO Atkins, E. Arthur Atkins, E.E. Atlantic Engine Co Ltd Attwood, E.L. Aumann Austen Stignant, S. Austen Stignant, S. & Morgan Lacey, Austin Electric Co Austin Motors Austin Motors Ltd Austinlite Ltd Auto Diesels Ltd Auto-Klean Autocarriers Automatic Coil Winder and Electrical Equipment Co Automatic Telephone & Electric Co. Ltd Aveling Barford Avery Hardoll AVO AVO/ A.C.W.E.E Co Ltd Avro Bacharach Baedecker, K. Bailey, James Baird & Tatlock (London) Ltd Ball Bamfords Ltd Bates and Scholes Ltd BBC BCH Communications Ltd Beam Tube Corp Belling and Co. Ltd Belliss & Morcom Belliss and Morcom Ltd Bendix Bendix Radio Corporation Bennett College Bentall Bentley, Wallace Bergius Launch and Engine Company Bernard Moteurs Bessemer Betts Brown, A. BIB Cochran Birmal Blackburn , Starling and Co Ltd Blackburn-Turbomeca Blackie & Son Ltd Blackstone and Co. Ltd BMB BMC BOC Bolinder Bolinders Bolnes Bosch Boulton, W.S. editor Box, T. Brabo Bradford Gas Engine Co Bradford Sanders Bradley, J.W. Brame, J.S. & King, J.G. Brammer Brearly, A.W. & Brearley, H. Briggs And Stratton Corporation Bright Mclaren, W.S. Brimar Bristol Compressors Bristol Siddeley Engines Ltd Bristol Wagon & Carriage Works Bristol-Siddeley Engines Ltd Brit Engineering Co. Ltd Britannia Manufacturing Co. Ltd British Engine, Boiler And Electrical Insurance Company Ltd British Insulated Callenders Cables British Manzel Oil Pump Co. British Powerboat Company British Standards Institution British Telecom British Thomson-Houston Co. Ltd British Waterworks Association Brockhouse Engineering (Southport) Brooks, C.P. BroomWade Brougham Heylin, H. Browett, Lindley and Co. Ltd Brown, H.B. & Bryant, A.J. Bruce & Holroyd Bruntons Ltd Sudbury Brush Electrical Engineering Co. Ltd Brush Electrical Machines Ltd Bryce Fuel Injection Ltd BSA BT BT Communications Systems Division BT PLC BTH Bucher Buckeye Engine Company Buckley, J. Bundenberg Gauge Co Ltd Burgess Burmeinster & Wain Burnham, T.H. & Hoskins, G.O. Burnos Busch-Sulzer Bros Diesel Engine Co. Bush C. H. Bradbury, Ingrebourne Printing & Publishing Co Callbuoy Cambridge Cambridge Instrument Co. Ltd Camm, F.J. Campbell Oil Engine Co. Ltd Campin, Francis Caterpillar Caudwell, O. CAV Ltd Cawthorne Unwin, W. Chapman, C.W. Charles D. Holmes & Co. Ltd Charles H Pugh Ltd Chas Price & Sons Chloride Electrical Storage Company Ltd Chrysler Corporation Chrysler Motors CIE Citroen Clarke & Smith Clayton & Shuttleworth Ltd Clerk, Dugald Cleveland Diesel Engine Division (GM) Climax Clinton Engines Corporation Clydach Foundry Coastal Radio Ltd Coborn Colchester Machine Tools Coles Cranes Collins Collins/Hazeltine Electronics Corp Collins/Magnavox Commer Computing Devices of Canada Ltd Connecticut Telephone & Electric Division Consolidated Pneumatics Continental Coopers Mechanical Joints Ltd Copp, Douglas Cossor Coventry Chain Co.Ltd. Coventry Climax Coventry Diesel Engines Ltd Coventry Victor Motor Company Ltd Cranfield Conference Crankshaw, W.P. Creed Creed and Company Crocker, S. Crofts Ltd., Crompton and Co. Ltd Crompton Parkinson Crosby Steam Gage & Valve Co. Crossley Brothers Ltd Crossley-Premier Ltd Cryer and Jordan. Crystal calibrator No 10 Crystal Monitor Type 2 Cub Oil Engines Ltd Cummins Engine Co. Cunningham Custom Cyclemaster Ltd D. Napier & Son Ltd D. Williams Daimler Motor Company Ltd Daisly, H.R. Dan Howden Daniel Adamson Davenset Davey, Paxman & Co. Ltd. David Edgington De Havilland Decca Decca Navigator Company Ltd Decca Systems Incorporated Delco-Remy & Hyatt Ltd Detroit Diesel, General Motors Deutz Dewrance Dicksee, C.B. Diesel Engine Co. Ltd Diesel Engine Users Association Dobbie-McInnes Ltd Dobson and Barlow Ltd., Domestic Radios Dorman & Smith Ltd Douglas Douglas (Kingdwood) Ltd Douglas Motorcycles Doulton Insulators Ltd Douver, A.T. Dowson & Mason Gas lant Co Ltd Dronsfield Brothers. Duncan, H.A.J. Dynamic Logic Ltd E Timmins & Son Ltd E. Cotton (Motorcycles) Ltd E. Green & Son E. H. Bentall and Co. Ltd E. J. Smit & Son E. Reader and Sons Ltd East Surrey Water Company Eddystone Edison & Swan Ltd edited by F.J.Camm. Edited E. Kilburn Scott. Education Sub Committe of The F EG & G Eisemann Magneto Corporation EKCO Electric Construction Company Electromotors Ltd Electronic Laboratories (Seafarer) Elektrisk Bureau Elliot Elliott Brothers Ellis Ltd Ellwe EMC Motorcycles Emerson Emitron Enfield Industrial Engines Ltd Engineering & Power Company Engineering Magazine English Electric Company Ltd Epson Ericsson Ltd Ernest Benn Ltd Ernest Scott & Mountain, Ltd Evans Electroselenium Ltd Ever Ready Ever ready Co. Ltd Everett & Edgcumbe and Co Ltd Evers, H. Evershed & Vignoles Excelsior Motor Company Exide F. C. Heayberd and Co. Ltd F. E. Becker and Co. F. Perkins Ltd Fairbanks Co Fairbanks Morse Farnsworth Television & Radio Corporation Felix Farley Ferr Ferranti Ferrograph Ferry Marine Engines Fichtel & Sachs Fichtel & Sachs AG Fielding & Platt Fielding & Platt Ltd Floating Transceiver Foden Ltd Ford Australia Ford Motor Company Foundrometer Fowlers Ltd Francis Francis-Barnett Frank Hartop & Sons Frank Pearn and Co. Ltd Frank Wigglesworth Frank Wightman Friedrich Leutert GmbH and Co. KG G & J Weir Ltd Galloways Galloways Ltd Gambrell and Co. Ltd Gambrell Brothers Gambrell Brothers and Co. Ltd GE GEC GEC Ltd GEC Telecommunications Ltd Geloso General Electric Company General Electric Company Ltd General Motors Corporation General Post Office General Radio Company Gent and Co. Ltd Gent's Gents Gents and Co. Ltd Geo. Munro Ltd George Adams George Fowell George Kent George Kent Ltd George Saxon George Taylor (Brassfounders) Ltd George Waller Gibson, A.H. & Chorlton, A.E.L. Gissing, Fred T. Gledhill-Brook Time Recorders Ltd Glenfield & Kennedy Glenfield & Kennedy, Hydraulic Engineers Gleniffer Engines Ltd Gloster Aircraft Company Ltd GM, Cleveland Engine Division GM-Detroit Godwin Pumps Goldingham, A.H. Goodeve, T.M.. Goudie, W.J. Governor GPO Gray Marine Motor Company Greendale Electronics Ltd Greenwood & Batley Griffen Griffin & Tatlock, London. Gwynnes Ltd H Tinsley and Co Ltd H. Alabaster, Gatehouse and Co. Ltd H. J. Godwin Ltd H. Sullivan Ltd H. Tinsley and Co. Ltd H. V. Senior H. w. Sullivan Ltd, London. H. Widdop and Co. Ltd H.A.Phillips and Co. Hallicrafters Hamworthy Engineering Co. Ltd Handyside Hans Reynold Hardings, Rhodes and Co Ltd Harland & Wolff Harland Engineering Co. Ltd Harmer + Simmons Ltd Hart Accumulator Co. Ltd Hart-Parr Hartley Hathorn, Davey and Co. Ltd Hatz Hawker Siddeley Power Plant Hawker Siddley (Hamble ) LTD Hawker-Siddeley/Petters Ltd Hawkins, G. Heathkit Heatly-Gresham engineering Co. Ltd Heenan & Froude Ltd Heiser Heldt, P.M. Hendon, London Henry Butler Henry Cooch Henry Hornby and Co. Ltd Henry Meadows Ltd Hercules Motors Corporation Herzeld, Dr. J. Heylin, H.B. Hi-Mound Hick, Hargreaves and Co. Ltd Hill, Harold Hiller, Edward G. Hine and Robertson Hiscock, G.D. HIVAC HMSO Hoffmann Bearing Hogg, Robert S. Holmes, J. Home Made, but with BEME loop Homemade Homemade Tranceiver Honda Horseley Bridge and Thomas Piggott Ltd Hotchkiss Hydraulic Propellor Co. Ltd Howard and Bullough Ltd., Hoyt Metal Company HP HRO Huddersfield Heath District Hundested Motor Factory Ltd Hurdy Gurdy Hurst, Charles Hutton, F.W. Hutton, W.S. Hytron Hytronic Laboratories Ibbettson, W.S. IMR IMRO Inchley, William Ingham, A.E. Instructions For Repairing Internal Fire Museum International Harvester International Marine Radio Co. Ltd. International Marine Radio Company (IMRC), Croydon International Maritime Organization ITT Marine Ltd J & H McLaren Ltd J & W Kirkham Ltd J & W McNaught J. A. Prestwich Industries J. B. Cumberland J. B. Petter & Sons J. Clubley Armstrong DANARM J. Knight & Hale Ltd J. Okill J.A.Prestwich and Co. Ltd J.H.Bennett and Company. Jackson, Percy G. James Beresford & Son Ltd James Howden and Co Ltd James Keith and Blackman Co James Petter James Robson James Watt and Co. Ltd James White Jamieson, Andrew Jamieson, Professor A. Jaybeam JCB Power Systems Jenner, A.W. editor JLO John & Edward Wood John Allen John Fowler (Leeds) Ltd John Hetherington & Sons Ltd. John Marston Ltd John Musgrave & Sons John Penn and Sons John Thornycroft and Co. Ltd Jones, David Louis Joseph Casartelli Joseph Casartelli & Son Joseph Evans & Sons Ltd Joseph Evans and Co Ltd Joseph Lucas Ltd Jowett Cars Ltd JRC Judge, Arthur W. Junkers K Kaiser Kearton, W.J. Kearton, William J. Kearton, William S. Keighley Gas & Oil Engine Co. Ltd Kelvin Hughes Kelvin Hughes ? Kelvin-Hughes Ken-Rad Kenrad Koden Koden Electronics Co. Ltd Kryn & Lahy (1928) Ltd KW L. Gardner & Sons Ltd Lacey Hulbert Lake, Charles S. Lamb, John Lambretta Lanarkshire Steel Company. Lardner, Dr Dionysius Laurence, Scott & Electromotors Laurence, Scott and Electromotors Ltd Lea Recorder Co. Ltd Lea, F.C. Lee Howl Lehmann and Michels Gmbh Leslie Browne, C. Levis Motorcycles Leyland Motors Lippincott Speciality and Steam Supply Co. Lister Blackstone Mirrlees Marine Lister-Petter Ltd Lombardini Longridge, C.C. Louden Louis C Eitzen Co. Low, D.A. & Bevis, A.W. Lucas Lyle, Oliver M-L M-OV M. Welte and Söhne Macfarlane Engineering Co MacGibbon T. C. & Tod, J. MacGibbon, W. C. MacGibbon, W.C. Maclean, Magnus Made for Air Ministry: various manufacturers Madison Kipp Magenta Maihak Maldea Brothers and Thompson Ltd Manchester Association of Engineers Manson Marconi Marconi International Marine Co. Ltd Marconi Ltd Marconi/ Clifford Snell, Croydon. Marietta Mark Webber Ltd Markon Engineering Markon Engineering Co. Ltd Marks, E.C.R. Marsden, R. Marshall and Co. Ltd Marshall, Sons And Co. Ltd Mather & Platt Ltd Mawdsley Maytag Mazda McGibbon, W.C. McKerrell, J. McLaren McMichael Radio Ltd, Slough McMichael Radio Ltd, Slough.. Meadows Meadows Engines Meggitt Defence Systems Ltd Meldrum Brothers Ltd Mercury Merlin Messrs J. Browett-Lindley (1931) Ltd. Metropolitan Vickers Metropolitan-Vickers Electrical Co. Ltd Michael Prince G7EUL Micronta Microturbo Middleton, G.A.T. Millars Machinery Co. Ltd MIMCO/Ferrograph Minatron Ministry Of Defence Mirrlees Blackstone (Stamford) Ltd Mirrlees Blackstone Ltd Mirrlees National Ltd Mirrlees, Bickerton & Day Mirrlees, Bickerton and Day Mirrlees, Blackstone Mirrlees, Watson MOD Molloy, E. Monitor Moore & Wright Moorfield, S.H. & Winstanley, S.S. Morley, Arthur Morris Motors Ltd Morrisons Ltd Mullard Mullard Equipment Division Multimeter Murphy Murphy Radio Ltd Myford N/A Napier Nasmith, Joseph National National Gas and Oil Engine Co. Ltd. National Maritime Museum National Time Recorder Co National Union Naval Education Board. Navy Dept Naylor, T.M. Negretti & Zambra Nems Clarke Nera Newage Ltd Newbigging, T. Newbury Sirron Newton Brothers (Derby) Ltd Nicol, G. Nisbet, D.T. NMES Nordberg Mfg Norman Norman Engineering Co Norman Engineering Co. Ltd Norton Motors Norton Villiers Ltd Nova Tech (USA) NSU Motorenwerke AG Nuffield NULL Oberg, E. and Jones, F. Oil Engine Magazine. Oil Engines (Coventry) Ltd Oliver, A. Onan Optimus Osram Otis Elevator Company P & B Engineering P.T & E.W. Ltd Panasonic Parkinson and Cowan Parkinson, T.H. Pattern V, Cambridge Instruments Co. Ltd Paxman Diesels Ltd Peckforton Pumping Station Pegson Ltd Pelapone Engines Ltd Perkins Engines Ltd Perkins Gas Turbines Ltd Perkins Ltd Perry, J. Peter Brotherhood Ltd Peter Caldwell Published by Constable and Co Ltd Petrelli Petter Fielding Petter Ltd Petter McLare1 Petter McLaren Petter Sevices Burton on the Wold Petters (Ipswich) Ltd Petters Ltd Petters LtdNo. 0 P-L set. Petters LtdP Philip Harris & Co (1913) Ltd, Birmingham Philip Harris Ltd, Birmingham. Philips Phillip Harris Phillips Phoenix Telephones PIFCO Pinnacle Pitcraft Ltd Plessey Plessey Communications Systems Ltd Plessey Telecommunication Systems Ltd Plummer, T.H. PO Engineering Post Office Post Office Engineering Post Office Engineering Department Post Office Engineering Dept Post Office Telecommunications Post Office Telecommunications Ltd Pounder, C.C. Powell Powell Brothers Power 0ne Inc Pratt & Whitney Pratts Price & Belsham. London Primus Pullen, W.W.F. Purday, H.F.P. Pye Pye Marine Ltd Pye Telecommunications Ltd Quadrant R. A. Lister R. A. Lister & Co. Ltd R. A. Lister and Co. Ltd R. Cundall & Sons Ltd R. Hornsby & Sons Ltd R208 Racal Racal Electronics RACAL Ltd Racal-Decca Marine Navigation Ltd RACAL/BBC Engineering. Railway Operating Executive. Rank Rankin Kennedy Rankine, Professor Ransome, Sims And Jefferies Ltd Raytheon RCA Reavell Reavell and Co Reavell and Co. Ltd Reddaway, Frank Redifon Redifon Ltd Redman Heenan Froude Ltd Reed, Thomas Regulateurs Europa Ltd Reid Reliance Mfg Co Renold RF Ammeter RG8 Rhode & Schwarz Ricardo Ricardo, Harry R. Richard Hornsby & Sons Ltd Richardsons and Westgarth Engines L Ripper, William Roadless Robert Bosch GMBH Robey Robey and Co. Ltd Robey Ltd Robinson, A.C. Robinson, William Robson ROF Puriton Rogers Rohde & Schwarz Rolls Royce Rolls Royce Ltd Rolls Royce Oil Engine Division Rolls-Royce Rolls-Royce Engines Ltd Rolls-Royce Ltd Romford Ronald Trist Controls Ltd Ronaldson Bros & Tippett Pty Ltd Rootes Group Rotherham Rotodata Ltd Rover Rover Gas Turbines Ltd RST Rudge Whitworth Runbaken Russell Newbery Ruston & Hornsby Ltd Ruston Lister Marine Co. Ltd Ruston, Proctor and Co. Ltd S G Brown S P Radio S.P. Radio Sachs Sailor Sait Electronics Sangamo Weston Sanoid Savage Bros. Ltd Savage Brothers Lrd Scammell Lorries Ltd Schaefer and Budenberg Schaffer and Budenberg Schwackhofer, F. & Browne, W. R. Scott & Hodgson Scott Motorcycle Company Ltd Scott Tagart, W. SE Laboratories Self Changing Gears Ltd Serck Sewell, T. SG Brown Ships Siemens Siemens Brothers Siemens Brothers and Co Limited Sievert Silk Engineering Simms Motor Units Ltd Simpson & Strickland Sinclair Sissons Skanti - re-badged SAIT Small Electric Motors Ltd Small Floating Receiver Smart and Brown Smith, G. Smith, Geoffrey Smiths English Clocks Ltd Snow Sontronic Ltd Sothern, J.W.A. Sothern, J.W.M. Sound Diffusion Ltd South Staffordshire Waterworks Company Speaker in Khaki Metal Box Spencer-Bonecourt-Clarkson Sperry Spon, E. Standard Motor Company Standard Telephones & Cables Ltd STC Stone-Chance Ltd Storthes Hall Hospital Stream-Line Filter Co. Ltd Stream-Line Filters Ltd Streamline Filter Company Ltd Streamline Filters Ltd Stuart Turner Ltd Stuart, A.H. Suffolk Iron Foundry (1920) Ltd Sulzer Brothers Sulzer Brothers Ltd Sunbeam Sundial Sunray Superheat Furnace Co. Sylvania Synchronome Clock Company Limited Synchronome Company T. Sugden Ltd T.H.Burnham & G.O.Hoskins Tangye Ltd Tangyes Ltd Tannoy Tarpen Engineering Co Ltd Taylor Tecalemit Telefunken Telephone Manufacturing Company, London. Telequipment Telspec Temple Press Temple Press Ltd Terrace, John Terrier TestGear The Atlantic Oil Engine Co. Ltd The Campbell Oil Engine Co Ltd The D.P. Battery Co. Ltd The De Havilland Engine Company Ltd The Electro Mechanical Brake Co. Ltd The Harland Engineering Co. Ltd The Hoyt Metal Company of London Ltd The Newcomen Society The Paterson Engineering Co. Ltd The Scarab Oil Burning Co. Ltd The Villiers Engineering Co. Ltd Thomas & Clement Ltd Thomas Ashworth and Co. Ltd, Burnley Thomas Glover and Co. Ltd Thorlux Lighting Thornley, Thomas TIBO TIE Communications Inc USA Tilleys Lamps Tinsley & Co TMC To be determined Tompkins, A. E. Toshiba Trautwine, J.C. Trill Indicator Co. Trinity House Trio Triumph Motorcycles Ltd Tung-Sol Tungsram Turner Turner, H. Tweedales and Smalley Ultra Unidentified Unit United Electronics Company United Oil and Coal Corporation United States Metaliic Packing Co. Ltd United States Metallic Packing Co Unknown Unknown (screened) US Signal Corps Vacumn Science Products Vanderhoff Various Vaughan Cranes Vauxhall Motors Ltd Vega Industries Velocette Ltd Veritas Vickers-Petter Ltd Victor Oil Engines Coventry Ltd Villiers Engineering Company Vincent engineers (Stevenage) Ltd Virtue and Company Vokes Volvo Volvo Penta Vulcan Motor & Engineering Company Ltd W & J George & Becker Ltd, Birmingham and London W A Tookey W Turner and Co W. G. Armstrong Whitworth and Co. Ltd W. G. Bagnall Ltd W. H. Allen Sons and Co. Ltd W. H. Allen, Son and Co Ltd W. H. Allen, Sons & Co. Ltd W. H. Dorman and Co. Ltd W. H. Maw J. Dredge W. R. Patents Ltd W. Sisson and Co. Ltd W.T.Teagle (Machinery) Ltd Wake, Tom Walker Walker Brothers Wallace (Glasgow) Ltd Wallis and Steevens Wallis Tractor Company Wallsend Slipway and Engineering Co. Walsall Elecgtrical Co. Ltd Warsop Warwill Foundry & Eng Works Warwill Ltd Water Authority Workshops Waukesha Motor Company Wayne Kerr Weinschel Engineering, Gaithersburg, Maryland. Wells Wellworthy Weslake Aero Engines West Riding of Yorkshire Mental Hospitals Board Western Acetylene Gas Co Western Electric Westinghouse Brake & Signal Co Westinghouse Ltd Weston Aerospace Weston Electrical Instruments Corp. Westwood Ltd Wickham Wico Widdop and Co. Ltd Wilkins, F.G.R. Willans & Robinson William Moyes William White Switchgear Williams, Archibald Wilson Windsor Wingates Winget Ltd Wingrove & Rogers Wipac Wisconsin Motor Corporation Witte Wolseley Wolsey Wood, Benjamin Woodhouse, T. & Milne, T. Wortham-Blake and Co. Ltd Worthington Co. Worthington Pump & Machinery Corporation Worthington Simpson Ltd Wouxan Yaesu Yeates & Son Yellow Emergency TX Yeo, Joseph Young, A.P. & Griffiths, L. Youngson, Peter Zaeux Zeidler, J. & Lustgarten, J. Zenith Zenith Motorcycles