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).
Laboratory photomicrograph showing material grain structure.
| Identifier | ExFiles\Box 141\1\ scan0086 | |
| Date | 1st October 1935 | |
| To Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} To accompany Report M1094. R.R. 403 (10H) (92117-1-10-35) J.H., Ltd. ROLLS-ROYCE LTD. LABORATORY. PHOTOMICROGRAPH No. A1/346 MAGNIFICATION: 150 DIAMETERS. | ||