| NAME | MATCH NR. |
DESCRIPTION |
| Below Futter Rechenschieber Eiweiss | 3507 | Slide rule, 520x130x18 mm (1949) |
| Below Futter Rechenschieber Latest model 51A | 0489 | Technical slide rule of plastic, 280x73x23 mm (March 1951) |
| Below Futter Rechenschieber Prototype disc version | 3511 | Disc |
| Below Futter Rechenschieber Prototype of Model 51A | 3510 | Slide rule, 275x135x4 mm |
| Below Futter Rechenschieber Stärkewert | 3508 | Slide rule, 520x130x18 mm (1949) |
| Below Futter Rechenschieber White model | 3509 | Slide rule, 270x160x8 mm (May 1950) |