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).
Pencil sketches of two mechanical part profiles or cross-sections.
| Identifier | ExFiles\Box 90a\1\ Scan020 | |
| Date | 13th November 1935 | |
| ROLLS-ROYCE, LTD., PRINT ROOM, 13 NOV 1935 DERBY. | ||