Logarex 27205 Log Log Duplex 5" (kind of a 'junior brother' to the 27602-II Exponent)
Country of manufacture: Czechoslovakia, Date of manufacture: ____
Overall length: 18.4 cm, Width: 3.8 cm, Weight: 40.9 gms
Materials: all plastic, end braces glued-on on front and back
Cursor: 2.8 X 4.9 X 0.6 cms; all plastic, adjustable; lines = four hairlines on front, one on back
Scales: 23, extensions on x and x2
Front: log, (1-x2)½, x3, x2 [ x2, 1/x, x] x, tg, sin, s-t
Back: e0.01x, e0.1x,ex,πx [ πx, 1/πx, 1/x, x ] x, e-x, e-0.1x,e-0.01x
Gauge Marks: [π, e, C, C1, ρ'', ρ', ρ ]
Condition: C3-C4 (Very minimal to minimal signs of use)
Came with: Blue plastic pocket slip case