Graphoplex 643 Pocket Rule 5"

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Country of manufacture: France,            Date of manufacture: ____
Overall length: 15.1 cm,          Width: 4.5 cm,           Weight: 42.3 gms
Materials: all plastic
Cursor: 2.5 X 4.4 X 0.6 cms; all plastic, slightly magnifying; lines = four hairlines on front, one set into body on back
Scales: 16, extensions on B², b², a, b, B
Front: 13 cm // L, cos, B³, B² [ b², a, b ] B, LL3, LL2, LL1
Back: blank, except for the label 'Speichim'
Slide Back: [S&T, S, T, b]
Gauge Marks: [C, π, e, ρ_,,, ρ', ρ'' ]
Condition: C2-C3 (Mint to Very Minimal signs of use)
Came with: Original leather pocket slipcase, instructions (in French)

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