Follow-up note regarding the performance of a set of Prima Sparking Plugs, attached to the original letter.
| Identifier | ExFiles\Box 33\3\ Scan191 | |
| Date | 23th November 1921 | |
| X18120 This is the copy of a letter sent by me to you a fortnight ago. I should feel obliged if you could let me know what results you have hitherto secured from the use of these plugs - 8th November 21 You will no doubt remember that the first set of 12 was mislaid after it had duly reached your works - and that when you discovered this you were good enough to promise that the new set (since sent) would receive immediate attention. Yours truly, George Roberts Messrs. Rolls Royce, Ltd., (Experimental Department), Nightingale Road, Derby. 23/11/21 Dear Sirs, I confirm my recent letter advising the despatch to you of a further set of six Prima Sparking Plugs (these with a gap of 0.75 millimetres), and I am hoping to hear from you as soon as convenient to your goodselves, your report as to their merits. Awaiting your news, I remain, Yours truly, Signed, George Roberts | ||
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).