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).
Letter from John Marston Limited listing the weights of test radiator cores.
| Identifier | ExFiles\Box 149a\2\ scan0345 | |
| Date | 23th January 1936 | |
| From John Marston Limited. To Messrs. Rolls-Royce Limited. DERBY. (CONTINUED). -2- 23rd January, 1936. WEIGHTS OF TEST RADIATOR CORES, 20" X 14 1/2". 52 m/m 0.005" Copper Mark V - 17 lbs. Mark VI - 19 lbs. 84 m/m 0.006" & .004" Tinned Copper. Mark V - 26 1/2 lbs. Mark VI - 26 lbs. | ||