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).
Specification sheet for various electrical components and their associated design numbers.
| Identifier | ExFiles\Box 153\3\ scan0002 | |
| Date | 14th March 1940 guessed | |
| SPECIFICATION SPECIFICATION Nº ISSUE Nº 1 SHEET Nº SEC. Nº | TITLE | DESCRIPTION | DESIGN Nº | DETAILS ISS. LOR Nº | REMARKS 8230 | STOP LAMP SWITCH & REV. LAMP SWITCH | STANDARD BV | | DW.236 | 8280 | LAMPS AND HORNS | LUCAS-R-100 HEADLAMPS BV BUILT-IN WING LAMPS BUILT-IN REAR Nº PLATE LUCAS WIND-TONE HORNS CENTRE LAMP FT.67 | | DW.997 | DESIGN REQUIRED FOR HORN RELAY MOUNTING 8290 | REGULATOR & CUT-OUT | STANDARD B.V | | DB{Donald Bastow - Suspensions}1922 | 8300 | PETROL PUMP | STANDARD B.V | | DB{Donald Bastow - Suspensions}1936 | 8310 | PETROL RESERVE TAP | ELECTRICAL RESERVE | | DW.929 | | ||