| Level | Item |
| Ref No | L/E/62/48 |
| Alt Ref No | E(L)/62/48 |
| Title | Industrial Rhythm \ Assessments \ Assessment Chart and Analysis |
| Date | 3 November 1947 |
| Extent | sheets |
| Description | A handwritten effort assessment chart labelled 'Jones'. |
| Language | English |
| Physical Description | Original reference number was IR/XXI/1. |
| Format | Papers |