| Name | Aristo 90184 Baustahlgewebe Bemessungsschieber. Variant |
| Front Scales | Technical scales A = B CI C = D Technical scales |
| Back Scales | See Picture |
| Type of Rule | slide rule |
| Material | wood/celluloid |
| Dimension (mm) | 320x44.5x4 |
| Area of Use | log/tech |
| Origin of Rule | John Mosand |
| Match Number | 3866 |
| Comment | |
| Thumbnail |  |