Aristo 80126 Special Slide Rule for the Optical Workshop

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Country of manufacture: Germany,            Date of manufacture: ____
Overall length: 16.8 cm,          Width: 3.8 cm.,           Weight: 35.3 gms.
Materials: All plastic.
Cursor: 2.1 X 4.8 X 0.8 cms; all plastic; lines = One on each side.
Scales: 11, Specialized
Front: D, r [ d_L, h ] z
Back: d_W [ r±e, 1/x, x ] x, α
Gauge Marks: [π]
Condition: C2-C3 (Very Minimal Signs of Use, no manual)
Came with: Original green pocket slipcase, information sheet

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