Photomicrograph showing a cross-section of a material with a surface crack.
| Identifier | ExFiles\Box 9\5\ 05-page043 | |
| Date | 1st October 1935 | |
| R.R. 403 (10m) (92117-1-10-35) J.H., Ltd. ROLLS-ROYCE LTD. LABORATORY. PHOTOMICROGRAPH No. A1592 MAGNIFICATION: 175 DIAMETERS. | ||
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).