Manufacturer: Aston & Mander
Country of Manufacture: England
Type: Sector
Number:  
Date of Manufacture:  
Scales: (Front) ins, L, S, C
Scales: (Back) S, T, T, T, S, N
Number of Scales: 9
Gauge Points:  
Slide Rule made from: Ivory
Cursor made from:  
Cursor Lines:  
Overall Length of Rule: 30.4 cm
Length of Scales: 25.2 cm (max)
Width: 1.9 cm
Depth: 0.3 cm
Weight:  
Acquired from: Peter Cusick
Date: December 2004
Condition: Good
Accessories:
  
Comments: