| Level | Item |
| Ref No | L/E/80/16 |
| Alt Ref No | E(L)/80/16 |
| Title | Industrial Rhythm \ Charts |
| Date | 9 August 1942 |
| Extent | 3 sheets |
| Description | Handdrawn charts. One entitled: Drilling (3 Holes). Two untitled. |
| Language | English |
| Physical Description | Removed from L/E/75/9. Original references are IR/B/1 and IR/B/4. One chart is made up of sheets glued together. One chart contains foxing. Stored in oversize plan chest. |
| Format | Papers |