Booklet for The Elverson Oscilloscope, also known as The Mechanical Time-Microscope.
| Identifier | ExFiles\Box 53\1\ Scan045 | |
| Date | 3rd September 1927 guessed | |
| The Elverson OSCILLOSCOPE The Mechanical Time-Microscope. NOC V4879 | ||
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).