Quifan 5891 Log Log Duplex Vector

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Country of manufacture: China,            Date of manufacture: ____
Overall length: 32.2 cm,          Width: 4.2 cm,           Weight: 115.2 gms
Materials: Celluloid laminate over bamboo, metal end braces, adjustable
Cursor: 3.3 X 5.4 X 1.1 cms; all plastic; lines = single hairline, front and back
Scales: 22, no extensions
Front: LL02, LL03, DF [CF, CIF, CI, C] D, LL3, LL2
Back: Sh1, Sh2, Th, A [B, T, SRT, S] D, DI, LL01, LL1
Gauge Marks: [π, e, 1/e ]
Condition: C5 (Normal signs of use)
Came with: Orig. dark green cardboard case
Notes: Clone of K&E 4083-3 LogLog Duplex Vector, Scale Set 4

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