| Level | Item |
| Ref No | L/E/7/54 |
| Alt Ref No | E(L)/7/54 |
| Title | Choreology (Effort) \ Odd and even interval harmonies, effort development |
| Date | n.d. |
| Extent | 6 sheets |
| Description | Handwritten notes with symbols and drawings by Rudolf Laban. |
| Language | English |
| Physical Description | Original reference number was 53/II/2d. |
| Format | Papers |