Manufacturer: Aristo
Country of Manufacture: Germany
Type: Projection Slide Rule Studio 168
Date of Manufacture:  
Scales: (Front) ST, T1, T2, DF [CF, CIF, CI, C] D, P, S
Scales: (Back) LL01, LL02, LL03 A, [B, L, K, C] D, Ll3, Ll2, LL1
Number of Scales: 23
Gauge Points: π, e, p', p"
Slide Rule made from: Plastic
Cursor made from: Plastic
Cursor Lines: 2 front, 4 back (inc HP)
Overall Length of Rule: 24.8 cm
Length of Scales: 19.9 cm + 2.3 cm ext
Width: 17.0 cm
Depth: 1.3 cm
Acquired from: Ann Sharman
Date: March 2004
Condition: Good
 Cardboard Box.  Medium condition