Blueprint showing a cross-section of a bolted component, with a handwritten note indicating a failure point.
| Identifier | ExFiles\Box 67\1\ scan0157 | |
| Date | 9th December 1925 | |
| ROLLS-ROYCE, LIMITED PRINT ROOM. 9 DEC. 1925 DERBY. APPROX POSITION WHERE BOLTS BROKE AHB. | ||
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).