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 showing a modification to gland nut E70355 for a 40/50 water pump.
| Identifier | ExFiles\Box 66a\3\ scan0153 | |
| Date | 4th November 1927 | |
| MODIFICATION TO GLAND NUT E70355 40/50 WATER PUMP .275" ±5 3 HOLES EQUALLY SPACED .062" DIA .050" .062" ±5 4-11-27 | ||