From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Blueprint detailing a proposed valve hole for a 4.00 inch rim, model RS.0548.
| Identifier | ExFiles\Box 159\3\ scan0087 | |
| Date | 3rd August 1939 | |
| MODIFICATIONS. 4.00"±.063" 4.00 RIM RS.{Sir Henry Royce's Secretary}0548 27° 1/64" R.{Sir Henry Royce} .504" / .514" DIA. .450" 1/32" AT 45° DETAIL OF VALVE HOLE. SCALE:- 1/8 & FULL DRAWN HR TRACED CHECKED Geo DATE 3.8.39 D.M.C. TITLE:- PROPOSED VALVE HOLE FOR 4.00" RIM RS.{Sir Henry Royce's Secretary}0548 JOB N° DE1538 No. OFF 1 DATE 3.8.39 DIMENSIONS NOT LIMITED ARE SUBJECT TO A TOLERANCE OF ±.005" DUNLOP RIM & WHEEL CO., LTD., FOLESHILL, COVENTRY. DRG. N° CDO3403 | ||