1. This a fairly straightforward but very tidy Rietz rule
2. It is also the rule which is behind the German
instructions for the Rietz rule.
| Slide rules HOME page | COLLECTION | 5" RULES |
| What's new |
| Make | Ecobra, Germany | |
| Model | Rietz, 141 | |
| Notes 1. This a fairly straightforward but very tidy Rietz rule |
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| Front view |
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| Detail - front left |
Detail -front right |
Detail - slide reversed |
| Manufacturing date | c 1970 | |
| Length | 5" | |
| Material | Plastic | |
| Scales | A [B, CI, C / S, L, T] D, K | |
| Cursor | Plastic | |
| Hair lines | Two lines | |