| Name | Keuffel & Esser < 4053 - 3F > dated 1913 |
| Front Scales | 10inch / A = B CI C = D ] K |
| Back Scales | = S T L = |
| Type of Rule | slide rule |
| Material | engine divided celluloid laminated mahogany |
| Dimension (mm) | |
| Area of Use | generic |
| Origin of Rule | Bob Otnes |
| Match Number | 4122 |
| Comment | |
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