| Name | Keuffel & Esser 4053 - 5 Polyphase Mannheim Adjustable |
| Front Scales | 20inch / A = B CI C = D K ] 50cm |
| Back Scales | = S L T = |
| Type of Rule | slide rule |
| Material | Engine divided celluloid laminated mahogany |
| Dimension (mm) | 500x36x9 |
| Area of Use | generic |
| Origin of Rule | Michael O'Leary |
| Match Number | 4132 |
| Comment | |
| Thumbnail | No Picture |