Manufacturer: Aristo
Country of Manufacture: Germany
Type: 915 Elektro
Number: GFO3
Date of Manufacture: 1965
Scales: (Front) cm /K, A [B, BI, CI, C] D, LL3, LL2, D/M =), V / ins 1/32
Scales: (Back)                 [S, ST, L, T]
Number of Scales: 15
Gauge Points: π, PS, HP, 3, p'', p',220, 380, Cu3 = 175, Al4 = 270, Cu4 = 890, Al3 = 290, e
Slide Rule made from: Plastic
Cursor made from: Plastic slightly magnifying
Cursor Lines: 4 (kW, q, d, PS)
Overall Length of Rule: 31 cm
Length of Scales: 25 cm + 2.5 cm extension
Width: 5.5 cm
Depth: 0.7 cm
Weight: 126gm
Acquired from: George Coletsis
Date: Mar 2001
Condition: Good
 Plastic case. Good condition
 Data sheet
 Very high gloss finish