Manufacturer: Alvin
Country of Manufacture: Japan
Type: Elite Vectorlog 1157
Date of Manufacture:  
Scales: (Front) Sh2, Sh1, A [B, K, Th, C] D, Tr1, Tr2, dB
Scales: (Back) Sr, Stheta, P', P [Q, CF, CI, C] D, DF, LL2, LL1
Number of Scales: 23
Gauge Points: π, C, C1, M, e
Slide Rule made from: Plastic on Bamboo
Cursor made from: Plastic
Cursor Lines: 4 lines front (including kW, HP), 1 back
Overall Length of Rule: 35.3 cm
Length of Scales: 25.0 cm + 3.0 cm extension
Width: 4.7 cm
Depth: 0.7 cm
Weight: 148 gms
Acquired from: Kathleen Havers
Date: May 2002
Condition: Good
 Leather case.  Good condition