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).
Leaflet from gaiter makers Hammond (Chelsea) Limited regarding the scientific care of springs.
| Identifier | ExFiles\Box 154a\4\ scan0203 | |
| Date | 2nd July 1921 guessed | |
| "Lubri" TRADE MARK. THE SCIENTIFIC CARE OF SPRINGS HAMMOND (CHELSEA) LIMITED Expert Gaiter Makers PARK WALK, CHELSEA, LONDON, s.w. | ||