Blueprint showing the Brinell hardness test results and distortion on an axle.
| Identifier | WestWitteringFiles\N\July1925-September1925\ Scan259 | |
| Date | 16th September 1925 | |
| FORWARD DIRECTION DRG: SHOWS 4°15' 4°7' 6°10' SHADED PORTION SHEWS WHERE DISTORTION OCCURED NEAR SIDE ROLLS-ROYCE LIMITED PRINT ROOM 16 SEP 1925 DERBY BRINELL OF AXLE 269 DRG: CALLS FOR 241-271 | ||
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).