| Manufacturer: |
Graphoplex |
| Country of Manufacture: |
France |
| Type: |
690 |
| Number: |
|
| Date of Manufacture: |
1962+ |
| Scales: (Front) |
LL01, LL02, LL03, DF [CF, CIF, CI, C] D, LL3, LL2, LL1 |
| Scales: (Back) |
L, P, AI, A [B, T1, ST, S] D, T2, DI, K |
| Number of Scales: |
24 |
| Gauge Points: |
π, p'', p', d, e |
| Slide Rule made from: |
Plastic |
| Cursor made from: |
Plastic slightly magnifying |
| Cursor Lines: |
3 front, 1 back |
| Overall Length of Rule: |
33.8 cm |
| Length of Scales: |
25 cm |
| Width: |
4.6 cm |
| Depth: |
0.5 cm |
| Weight: |
123 gm |
| Acquired from: |
Asif Azhar |
| Date: |
Dec 2000 |
| Condition: |
Good |
| Accessories: |
Cloth case. Medium condition
|
| Comments: |
Very high gloss
|