| Manufacturer: |
Sun Hemmi |
| Country of Manufacture: |
Japan |
| Type: |
Hughes Owen 1777 |
| Number: |
NJ |
| Date of Manufacture: |
|
| Scales: (Front) |
LL0, LL/0, K, DF [ CF, CIF, CI, C] D, R1, R2, L |
| Scales: (Back) |
LL/1, LL/2, LL/3 [ T, ST, S, C] D, LL3, LL2, LL1 |
| Number of Scales: |
23 |
| Gauge Points: |
π, R, re, e |
| Slide Rule made from: |
Bamboo and Plastic with Metal End Pieces |
| Cursor made from: |
Glass with Metal Frame |
| Cursor Lines: |
1 front, 1 back |
| Overall Length of Rule: |
32 cm |
| Length of Scales: |
25 cm |
| Width: |
4.4 cm |
| Depth: |
0.7 cm |
| Weight: |
132 gm |
| Acquired from: |
Marcus Deacon |
| Date: |
Nov 2000 |
| Condition: |
Medium |
| Accessories: |
Leather case. Good condition
|
| Comments: |
Identical to Hemmi 258
JOS Vol 9, No. 2
"The Sun Hemmi System of Trigonometrical
and Hyperbolic Scales"
Borchers and Cotter
|