Manufacturer: Aristo
Country of Manufacture: Germany
Type: Naviat 661
Number:  
Date of Manufacture:  
Scales: (Front) 6 specialised
Scales: (Back) 11 x 25 cm plotting surface
Number of Scales: 6 front, 3 on rear
Gauge Points:  
Slide Rule made from: Plastic
Cursor made from: Plastic
Cursor Lines: 1
Overall Length of Rule: 25 cm. Diameter of circular section 14.0 cm
Length of Scales:  
Width:  
Depth: 0.7 cm
Weight:  
Acquired from: Kay Dennert
Date: February 2006
Condition: Good
Accessories:
 Leather case.  Good condition
 Instructions (German). Good condition
Comments: