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).
List of metal working machines including swaging, drilling, and grinding machines.
| Identifier | ExFiles\Box 27\3\ Scan281 | |
| Date | 18th October 1939 | |
| P. W. & CO., LTD. CONTD. CWW/MH.{M. Huckerby} 18th. October 1939. METAL WORKING MACHINES? CONTD. Large Swaging Machine. 25 - Electric Drilling Machines. 6 - Portable Drilling Machines. 2 - Electric Scouring or Grinding Machines. | ||