1. This rule is typical of mid-range rules made toward the end of
the slide rule era.
2. The log-log scales are on the reverse of the slide which to be taken out and replaced.
| Slide rules HOME page | COLLECTION | 10" RULES | OTHER COUNTRIES |
| Make | Hemmi, Japan | |
| Model | P 280 | |
| Notes 1. This rule is typical of mid-range rules made toward the end of
the slide rule era. |
||
| Front view |
||
| Detail - front left |
Detail - front right |
Detail - back left |
| Manufacturing date | c 1970 (my guess) | |
| Length | 10" | |
| Material | Plastic | |
| Scales | T, K, A [B, CI, C / LL1, LL2, LL3] D, L, S, ST | |
| Cursor | Plastic | |
| Hair lines | None | |