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).
Laboratory instruction sheet detailing Brinell test results and specific gravity for various alloys.
| Identifier | ExFiles\Box 37\4\ scan 142 | |
| Date | 27th July 1914 | |
| ROLLS-ROYCE LIMITED. INSTRUCTIONS. I. R.{Sir Henry Royce} 28. (24H) S.D. (295. 15-3-11) M.P. 176550. X 3041 To: Mr Black. Date: 27 . 7 1914. Order No. Customer's No. Laboratory Alloy Brinell Test. M3 = 64 M4 = 89 A.F. = 89 AF has a Specific Gravity of 2.96 Signed: H.C.H. B. This Sheet must be filed on completion of the work. | ||