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 the outline and dimensions of an ignition coil.
| Identifier | ExFiles\Box 163\7\ img039 | |
| Date | 8th January 1919 | |
| 2 13/16, 3 49/64, 1/2, 5/8, 5/8, 5/8, 5996, OUTLINE OF 2171, ALLOWABLE VARIATION ON DIMENSIONS LOCATING FINISHED SURFACES IS PLUS OR MINUS .005 UNLESS OTHERWISE SPECIFIED., MATERIAL, MAT. SPEC., HEAT TREAT, HARDNESS, FINISH, THE DAYTON ENGINEERING LABORATORIES COMPANY, DAYTON OHIO, IGNITION COIL OUTLINE, DATE 1 - 8 - 19, SCALE FULL, DRAWN BY F.H. KLEINKE, APPROVED, TRACED BY, NO. X-8126 | ||