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).
The mileage and testing schedule for a 20 HP car, chassis No. 14/G/4.
| Identifier | ExFiles\Box 5a\2\ 02-page025 | |
| Date | 31th December 1928 | |
| X5840C SECRET. S/W. (Copy to Hs{Lord Ernest Hives - Chair}) (Chateauroux) CWB. WRF. SG{Arthur F. Sidgreaves - MD}10/W/31.12.28. Re: 20 HP. Chassis No. 14/G/4. Referring to Worl/G22.12.28. this shows that the above car should have completed 7,480 miles by the 9th January, and as on normal 10,000 miles tests, Sales officials do not take the car over until the last 1,000 miles, I should be glad if you would let me know how it is proposed that the 20 HP. will be tested by Sales officials before the 10th January. I have asked each of the people who have gone from London, to pay the same attention to the 20 HP. as to the 'SS{S. Smith}' chassis, and I presume BP. will be doing the same, but if you think there is any doubt on this point, perhaps you will wire him on receipt of this. Sg.{Arthur F. Sidgreaves - MD} | ||