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).
Time study sheet for installing bolts and rivets.
| Identifier | ExFiles\Box 119\2\ scan0047 | |
| Date | 30th April 1914 guessed | |
| Wor{Arthur Wormald - General Works Manager}/Mcrl/L5514. Sheet. 3 BOLTS & RIVETS ETC. 3/8" vertical rivet in Dumb Iron, near side. 5 hrs 13 mins. Average over. 1 ditto. off side 10 " 38 " " " 1 | ||