Manufacturer: Blundell
Country of Manufacture: England
Type: Academy Duplex 506
Date of Manufacture: 1965+
Scales: (Front) LL01, LL02, LL03, DF [CF, CIF, CI, C] D, LL3, LL2, LL1
Scales: (Back) Sh1, Sh2, Th, A [B, T, ST, S] D, DI, K, L
Number of Scales: 24
Gauge Points: π, e, re, p'', p
Slide Rule made from: Plastic
Cursor made from: Plastic
Cursor Lines: 1 front, 4 back
Overall Length of Rule: 34 cm
Length of Scales: 25.4 cm
Width: 4.9 cm
Depth: 0.4 cm
Weight: 113 gm
Acquired from: Mark Buttterworth
Date: Jan 2001
Condition: Good
 Plastic case. Good condition
 See JOS Vol 7, No1 for
 "Blundell: A Brief History of Blundell Harling Ltd"