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).
Attaching test certificates for eight 40mm barrel forgings dispatched to the Royal Ordnance Factory.
| Identifier | ExFiles\Box 176\3\ img196 | |
| Date | 20th August 1940 | |
| HPS{Horace Percy Smith - Experimental Factory Mgr}/LB. O.{Mr Oldham} Rm.{William Robotham - Chief Engineer} Cgh{W Clough}/EM.5/J.20.8.40. ZC 40 mm. Barrel Forgings. We attach hereto for your information, copies of test certificates issued by The English Steel Corporation in regard to a further eight barrels despatched to the Royal Ordnance Factory, Nottingham, on the 17th inst. We presume you will desire to submit these to C.I.N.O. for approval. Cgh{W Clough}/EM. | ||