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).
Graph plotting water and air temperature against distance during a climb of the Stelvio Pass.
| Identifier | ExFiles\Box 87\1\ scan0165 | |
| Date | 30th August 1935 | |
| WATER TEMPERATURE OF B-56-BN{W.O. Bentley / Mr Barrington} CLIMBING THE STELVIO PASS TRIAL STARTED ON 14TH HAIR PIN ORIGINAL TYPE BENTLEY RADIATOR FITTED SPEED 12 M.P.H IN 2ND SPEED DATE 30 - VIII - 35 AIR TEMPERATURE WATER TEMPERATURE MILES FROM 14TH HAIRPIN. HS.{Lord Ernest Hives - Chair}2113. | ||