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: