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).
Electrical experimental record sheet for D-type cut-out contacts.
| Identifier | ExFiles\Box 50\1\ Scan129 | |
| Date | 14th January 1926 | |
| X410P ELECTRICAL EXPERIMENTAL RECORD SHEETS. X. No:- 4105.D. D-Type Cut-out Contacts Date on. | Location. | Date off. | REMARKS. | Miles Reading Start. | Miles Reading Finish. | Miles covered. | Total Miles | | | D | | | | 1-VII-25 | YGI. | | Fitted by RHC. {R. H. Coverley - Production Engineer} under "miracle" | 3600 | | 0 | 0 26-VII-25 | " | | Signal lamp connected. See | 4956 | | 1356 | 1356 18-VIII-25 | " | | Inspected. Sliding & Pts OK. | 6909 | | 1953 | 3309 1-X-25 | " | | " | 8929 | | 2020 | 5329 14-XII-25 off | " | | Replaced by AG (for disposal) | 1127 | | 2198 | 7527 7-I-26 | 2GII. | | Found on AW's car. Signal OK. | 8424 | | | 14-I-26 | Lab | | Experiment terminated. | | | | | ||