Manufacturer: Boxwood Sector
Country of Manufacture: U.S.A ?, England?
Date of Manufacture:  
Scales: (Front) ? /ins, L, S, C
Scales: (Back) T, S, N      S, T, T
Number of Scales:
Gauge Points:  
Slide Rule made from: Brass and Boxwood
Cursor made from: No cursor
Cursor Lines:  
Overall Length of Rule: Fully opened 12 ins
Length of Scales: 11 3/4 ins
Width: 5/8 ins
Depth: 1/8 ins
Weight: 20 gm
Acquired from: Steve Jones
Date: June 2001
Condition: Good
 No case
 Unknown scale on front edge
 JOS Vol 6, No 2  "The Sector"