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).
Blueprint diagram illustrating cracks on a mechanical part and its welding.
| Identifier | ExFiles\Box 82\4\ scan0295 | |
| Date | 23th April 1936 | |
| [ "23. 4. 36", "B.56. B.N", "CRACKED.", "CRACKED.", "WELDING OF END PLATE ALSO CRACKED", "ROLLS-ROYCE, LTD", "PRINT ROOM", "6 MAY 1936", "DERBY" ], | ||