| Name | Post 1460 Versalog Variant 1b: COS in green Duplex |
| Front Scales | LL0 LL/0 K DF = CF CIF CI C = D R1 R2 L |
| Back Scales | LL/1 LL/2 LL/3 = T T Sec T ST Cos S C = D LL3 LL2 LL1 |
| Type of Rule | slide rule |
| Material | Celluloid Bamboo |
| Dimension (mm) | |
| Area of Use | generic |
| Origin of Rule | Paul Ross/Ted Hume |
| Match Number | 3782 |
| Comment | |
| Thumbnail |  |