| Manufacturer: |
Lafayette |
| Country of Manufacture: |
U.S.A. |
| Type: |
F-686 VectorLog |
| Number: |
J.K-1 |
| Date of Manufacture: |
1950+ |
| Scales: (Front) |
Sh1, Sh2, DF, A [B, CF, Th, CI, C] D, LL3, LL2, dB |
| Scales: (Back) |
Tr1, Tr2, P', P [Q, ST, Sr, S0, C] D, LL03, LL02, LL01 |
| Number of Scales: |
26 |
| Gauge Points: |
π, M, C, C1, e, re |
| Slide Rule made from: |
Bamboo and Plastic with Metal End Pieces |
| Cursor made from: |
Plastic |
| Cursor Lines: |
1 front, 1 back |
| Overall Length of Rule: |
33.5 cm |
| Length of Scales: |
25 cm + 0.5 cm extension |
| Width: |
4.6 cm |
| Depth: |
0.7 cm |
| Weight: |
144 gm |
| Acquired from: |
David Jones |
| Date: |
Sep 2000 |
| Condition: |
Good |
| Accessories: |
Brown Leather case. Good condition
|
| Comments: |
Essentially the same as
Lafayette 99-71029 VectorLog
|