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: