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).
Instruction memo to Mr. Clark regarding the black finish process on Weston Instruments.
| Identifier | ExFiles\Box 38\6\ Scan158 | |
| Date | 28th October 1918 | |
| RR. 6 (500 T) (SF 121. 28.10.18) MP 197597 X. 3424 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Mr Clark. Order No. Customer's No. Mr. Hall cannot give any information re. the black. finish on Weston Ins. beyond that he does not think that it is produced entirely by a chemical process. He thinks that the iron case is treated chemically & then some kind of enamel is put on. [Initial signature] Signed This Sheet must be filed on completion of the work. | ||