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).
Preliminary list of prefix letters used with drawing numbers and their corresponding departments.
| Identifier | ExFiles\Box 143\3\ scan0139 | |
| Date | 27th March 1940 guessed | |
| PRELIMINARY LIST OF PREFIX LETTERS IN USE WITH DRAWING NUMBERS. SHEET.NO.1. KD. 30. PREFIX LETTERS. | DEPARTMENT. A, A.000 | Aero Orders. Cgh{W Clough}/EL. A.{Mr Adams} | Detail Drawings. Aero Division. ooo/A | Alteration to Detail drg. Aero.Division. ooo/Ass | Alteration to LOP's. Aero Division, B | Tool Office (Boring) B, BP, BV. | Building Department. C. | By.{R.W. Bailey - Chief Engineer} old Chassis Drawings. D.{John DeLooze - Company Secretary} | Tool Office (Drilling) D, DB{Donald Bastow - Suspensions}, DW. | Detail Drawings Chassis Division(Electrical Section) ooo/D | Alteration to Detail Drawings Chassis(Electrical Section) ooo/Dss | Alteration to LOP's.Chassis Division (Electrical Section) DCD | Chassis Design (Electrical Section) DES. | Aero Engine Designs. D.Sch, | D.D.O Schemes (Electrical Section) E.{Mr Elliott - Chief Engineer} | Detail Drawings. Aero Division. E, EB, EW. | Detail Drawings.Chassis Division.(Engine Section) ooo/E | Alteration to detail drawings. Chassis Div.(Engine Section) ooo/Ess | Alteration to LOP's.Chassis Division.(Engine Section) E.CD. | Chassis Design. (Engine Section) EL. | Experimental Drawings (Electrical Section) EV.{Ivan Evernden - coachwork} EvS. | Sales. Ex. | Experimental drawings. Ex.C | Experimental Air Ministry.Concessions. Ex.I. | Experimental Investigation Charts. Ex.S. | Experimental Design Details Chassis Division. F.{Mr Friese} | Tool Office (Forgings) F, FB, FW. | Detail Drawings.Chassis Division (Frame Section) ooo/F | Alteration to Detail Drawings.Chassis Div. (Frame Section) ooo/Fss | Alteration to LOP's Chassis Division. (Frame Section) F.CD. | Chassis Design.(Frame Section) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} | Tool Office.(Grinding) G, GB, GW. | Detail Drawings.Chassis Division(Gearbox Section) ooo/G | Alteration to detail drgs.Chassis Division(Gearbox Sec) ooo/Gss. | Alteration to LOP's.Chassis Division.(Gearbox Section) GL.{G. Linnett} | D.D.O.Schemes.(Gearbox Section) Cont'd on Sheet No. 2. | ||