| Manufacturer: | Aristo |
|---|---|
| Country of Manufacture: | Germany |
| Type: | Circular 620 |
| Number: | |
| Date of Manufacture: | |
| Scales: (Front) | C [D] |
| Scales: (Back) | |
| Number of Scales: | 2 |
| Gauge Points: | π |
| Slide Rule made from: | Plastic |
| Cursor made from: | Plastic |
| Cursor Lines: | 1 |
| Overall Length of Rule: | 12.1cm diameter |
| Length of Scales: | |
| Width: | |
| Depth: | 0.6 cm |
| Weight: | |
| Acquired from: | Pierre Hagen |
| Date: | October 2003 |
| Condition: | Good |
| Accessories: | Leather Sheath. (Good condition) |
| Comments: |