| Level | Item |
| Ref No | L/E/65/55 |
| Alt Ref No | E(L)/65/55 |
| Title | Industrial Rhythm \ Rhythm Study Experiments 1940/43 |
| Date | 6 July 1944 |
| Extent | 4 sheets |
| Description | Two sets of identical typed notes with differing handwritten amendments. |
| Language | English |
| Physical Description | Original references are IR/VII/1b and IR/A/2b. Pages numbered 2, 2. One copy removed from L/E/75/19. |
| Format | Papers |