Lafayette F-686 VectorLog (same as Lafayette 99-7102)

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Country of manufacture: Japan,            Date of manufacture: 1961
Overall length: 33.7 cm,          Width: 4.6 cm,           Weight:137.6 gms
Materials: Celluloid laminate over bamboo, metal end braces, adjustable
Cursor: 3.1 X 5.8 X 1.0 cms; all plastic, adjustable; lines = single hairline, front and back
Scales: 26, no extensions
Front: Tr₁, Tr₂, P', P [Q, ST, Sr, Sθ, C] D, LL03, LL02, LL01
Back: Sh₁, Sh₂, DF, A [ B, CF, Th, CI, C] D, LL3, LL2, Db
Gauge Marks: [π, e, 1/e, C, C1, M ]
Condition: C3-C4 (Very minimal to minimal signs of use)
Came with: Brown leather case

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