Graphoplex 640 Electric Log Log

Country of manufacture: France,            Date of manufacture: ____
Overall length: 29.5 cm,          Width: 4.5 cm,           Weight: 108.0 gms
Materials: all plastic
Cursor: 4.2 X 4.6 X 0.6 cms; all plastic; lines = three hairlines on front, one set into body on back
Scales: 16, extensions on B2, b2, b, B
Front: 27 cm // L, B3, B2 [b2, a, b ] B, LL3, LL2, LL1
Back:      [cos, sin, tg, b]
Gauge Marks: [π, e, ρ,,, ρ', ρ'', S, M ]
Condition: C4 (minimal signs of use)
Came with: Half of original cardboard box/case