| Level | Item |
| Ref No | L/E/13/77 |
| Alt Ref No | E(L)/13/77 |
| Title | Choreutics \ Tetra harm. [Tetrahedron harmony] |
| Date | n.d. |
| Extent | 12 sheets |
| Description | Drawings, handwritten notes and symbols by Rudolf Laban. |
| Language | German |
| Physical Description | Original reference number was 23/V/2. |
| Format | Papers |