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).
Hand-drawn diagram of an N.S.R. Lockheed Hydraulic Jack with an oil leak annotation.
| Identifier | ExFiles\Box 91\1\ scan0495 | |
| Date | 22th March 1937 guessed | |
| 35 Ex. N.S.R. LOCKHEED HYDRAULIC JACK OIL LEAKS HERE WHEN EXTENDED. | ||