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).
Instruction sheet for the acceptance of three spark coils with paper insulated primary windings.
| Identifier | ExFiles\Box 49\5\ Scan023 | |
| Date | 15th August 1923 | |
| RR 26 (10M BXS) (SK 185 6-10-22) MP 260735 X. 4273. ROLLS-ROYCE LTD. INSTRUCTIONS. To W. Clarke Date: 15. 8. 1923 Order No. EXP Dept. Customer's No. 50409 Kindly accept 3 Spark coils D1167 Primary winding insulated with paper between layers full no of turns on secondary winding coils marked 1. PP 2. PP paper primary 3. PP P & oblige W Samells Signed This Sheet must be filed on completion of the work. | ||