| Name | Russian GOST 5161 57 1961 |
| Front Scales | 25cm / K A = B CI C = D L ] 1:25 |
| Back Scales | = Sin S&T Tg = |
| Type of Rule | slide rule |
| Material | |
| Dimension (mm) | |
| Area of Use | generic |
| Origin of Rule | Michael O'Leary |
| Match Number | 5087 |
| Comment | Manufactured by Fabrika Schetnykh Priborov, Leningrad |
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