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).
Measured capacity of a 3 4-EX fresh water tank.
| Identifier | ExFiles\Box 114\4\ scan0055 | |
| Date | 12th February 1937 | |
| 10" 38 To Rm{William Robotham - Chief Engineer}/HFH.{Hoppy F. Hamilton} Rm{William Robotham - Chief Engineer}/WB.{Mr Brazier/Mr Bell}1/JH.12.2.37. 3 4-EX FRESH WATER TANK. Rm.{William Robotham - Chief Engineer}302. The capacity of this tank measured. 3 galls. 7 pts. Rn{Mr Robinson}/W.Bell. 56 | ||