Manufacturer: A Lafay
Country of Manufacture: France
Type: Helice a Calcul No. 2
Number:  
Date of Manufacture:  
Scales: (Front) 2 spiral
Scales: (Back) None
Number of Scales: 2
Gauge Points:  
Slide Rule made from: Plastic and paper
Cursor made from: Plastic
Cursor Lines: 1
Overall Length of Rule: 20.0 cms
Length of Scales:  
Width: 4.0 cms diameter
Depth:  
Weight:  
Acquired from: Christian Clemencin
Date: April 2006
Condition: Fair
Accessories:
 Cardboard case.
Comments:
 Cylinder rotates inside plastic sheath.