| Name | Type | Photo | Match |
|---|---|---|---|
| Blundell 600 Mannheim | slide rule | 2965 | |
| Blundell 812 Classmate Academy | slide rule | 540 | |
| Blundell 813 Classmate Academy | slide rule | 541 | |
| Blundell S 150 - 10 | slide rule | 495 | |
| Blundell S 150 - 10 P (Projection) | projection | 2988 | |
| Blundell S 150 - 10 Staedtler | slide rule | 3257 | |
| Blundell S 150 - 20 | slide rule | 530 |