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).
Instructions sheet detailing test data for Standard Pistons under various loads measured in LBS.
| Identifier | ExFiles\Box 77\3\ scan0046 | |
| Date | 9th April 1919 | |
| RR 6 (500 F 550 9-4-19) MP 204991 X3732 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Order No. Customer's No. 19 Load in LBS | Standard Piston | Split Piston 864 | .009 904 | .009 944 | .0095 984 | .010 1024 | .010 1064 | .010 1004 | .0105 1144 | .011 1184 | .011 1224 | .011 1264 | .0115 1304 | .012 1344 | .012 1384 | .0125 1424 | .0125 Signed This Sheet must be filed on completion of the work. | ||