Manufacturer: Aristo
Country of Manufacture: Germany
Type: 670 (Motorist) Circular
Number:  
Date of Manufacture: ~1955
Scales: (Front) distance, time, speed
Scales: (Back) includes fuel consumption
Number of Scales: 6
Gauge Points:  
Slide Rule made from: Plastic
Cursor made from:  
Cursor Lines:  
Overall Length of Rule: Diameter 5 cm
Length of Scales:  
Width:  
Depth: 0.2 cm
Weight:  
Acquired from: Adrianus Aarts
Date: Jan 2008
Condition: Good
Accessories:
 Leather case
 Instructions. (Swedish).
Comments: