Manufacturer:	IWA
Country of Manufacture:	Germany
Type:	IWAMATIC 1660
Number:
Date of Manufacture:
Scales: (Front)	L, C [AI, A] CI, S, T
Scales: (Back)	None
Number of Scales:	7
Gauge Points:	π, C
Slide Rule made from:	Plastic
Cursor made from:	Plastic
Cursor Lines:	2
Overall Length of Rule:	10 cms Diameter
Length of Scales:
Width:
Depth:	0.8 cm
Weight:
Acquired from:	Wolfgang Obhof
Date:	April 2005
Condition:	good
Accessories:	Plastic sheath. Good condition. Instructions (German). Good condition.
Comments:	A very unusual of scales. The three discs are rotated dependently by means of a central bezel.