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).
Abrasive powder found transferred from a bearing to two leads.
| Identifier | ExFiles\Box 47\1\ Scan368 | |
| Date | 3rd February 1926 | |
| - 2 - If you have a delicate touch you can actually feel the abrasive powder which has transferred itself from the bearing to these two leads. Will you please let us have your further comments. Ps. | ||