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).
Blueprint showing five different designs for the Hobson K.S. Telegage fuel gauge.
| Identifier | ExFiles\Box 44\2\ Scan035 | |
| Date | 20th January 1927 guessed | |
| Handwritten Annotations: 1, 2, 3, 4, 5 Text on each gauge: HOBSON K.S. TELEGAGE GALLS LITRES 20 - 90 18 - 80 16 - 70 14 - 60 12 - 50 10 - 40 8 - 30 6 - 20 4 - 10 2 - 0 0 PAT. 179966. PAT. 203769. PAT. 11666. | ||