Useful Sources for Materials and Advice
A-Z British Coachbuilders 1919-1960, by Nick Walker, 2007 Herridge & Sons Ltd., Devon, UK.
Bentley 3 ½ and 4 ¼ Litre 1933-1940 in Detail, by Nick Walker, 2002,Herridge & Sons, Devon, UK
Bentley Driver’s Club Technical Manual XXX
Derby Bentley Authenticity Guide, 2012 Edition, Derby Bentley Society RROC
Early Small Horsepower Judging Rules, 1990, Rolls - Royce Owners’ Club
Faults and Remedies Rolls-Royce and Bentley Cars 1925-1955, by J.B.M. Adams, Adams & Oliver Inc.
Handbook for 25-30 Rolls-Royce Car, Condensed Edition No.XVII, published by Rolls - Royce Ltd.
Judging Guide to Late Small Horsepower Rolls-Royce Motor Cars RROC Class 107, by Lee P. Haacker M.D., 1995 , at one time available through RROC.
Maintenance Notes on the 25/30 made at the Rolls – Royce School of Instruction July, 1937, by chauffeur H. Ray at one time available through RROC.
Opportune Excursion, the manufacturing and social biography of a 1938 Rolls – Royce 25/30 hp. car , Peter Brown, 2012, BradleHouse,Shaftesbury Rd., Gillingham, United Kingdom
Rolls-Royce 20HP, 20/25, 25/30 & Wraith in Detail – 1922-1939, by Nick Walker , 2009 Herridge& Sons Ltd., Devon, United Kingdom
Rolls-Royce Small Horsepower Engines, by R.Haynes and M.A. Grigsby, 1977 – The Rolls-Royce Enthusiast’s Club
Pre-War Rolls-Royce Service Handbook Containing Service Instructions, available from the Rolls-Royce Owners’ Club in the United States.
The Twenty, John Faisal
50 Years with a Rolls – Royce Twenty - A Mechanical Miscellany, David G. Davis, Published by the Sir Henry Royce Foundation, Australia, 2010
Survivor –An Owner Workshop Guide for the 20HP & 20/25 Rolls-Royce, Charles Vyse , Printed in Great Britain by Amazon.co.uk,Ltd., Marston Gate
The Rolls-Royce 20/25 H.P. ,Tom C. Clarke, 3rd Edition 2009,Complete Classics, Coulsdon, Surrey,U.K.
The Rolls-Royce 25/30 h.p. and Wraith, Bernard L.King, 1998, Complete Classics, Coulsdon, Surrey, U.K.
The Rolls-Royce Wraith, by Tom C.Clarke, 1986, Burgess &Sons, Abingdon,Oxfordshire,UK
Useful Accessories, a brochure published by Joseph Lucas Limited, Birmingham, England, Publication No. 300E, October 1937. ( old reprint by RROC )