| Manufacturer: |
Aristo |
| Country of Manufacture: |
Germany |
| Type: |
971 Hyperbolog (Charvoz) |
| Number: |
581 |
| Date of Manufacture: |
1958 |
| Scales: (Front) |
Th, K, A [B, T, ST, S, C] D, DI, Sh2, Sh1 |
| Scales: (Back) |
LL01,LL02, LL03, DF [CF, CIF, L, CI, C] D, LL3, LL2, LL1 |
| Number of Scales: |
25 |
| Gauge Points: |
π, s, s', R, e |
| Slide Rule made from: |
Plastic |
| Cursor made from: |
Plastic |
| Cursor Lines: |
2 on front, 4 on back |
| Overall Length of Rule: |
33.8 cm |
| Length of Scales: |
25 cm + 3cm extension |
| Width: |
4.7 cm |
| Depth: |
0.4 cm |
| Weight: |
105 gm |
| Acquired from: |
Toll House Antiques |
| Date: |
July 2000 |
| Condition: |
Good |
| Accessories: |
Brown leather case. Good condition
|
| Comments: |
Very high gloss finish
|