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).
Drawing of a gland nut locking ring for a 40/50 water pump.
| Identifier | ExFiles\Box 66a\3\ scan0150 | |
| Date | 4th November 1927 | |
| .250 .150" ±5 1.500 +25 17 SWG. (.056" DIA) GLAND NUT LOCKING RING 40/50 WATER PUMP 1 OFF S/CS 4-11-27 | ||