Graphic Calculator Company Union Pacific Railroad Calc-U-Layer Slide Rule

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Country of manufacture: USA,            Date of manufacture: >= 1938
Overall length: 29.5 cm,          Width: 7.0 cm.,           Weight: 75.2 gms
Materials: all plastic, closed form.
Cursor: 3.8 X 8.1 X 0.4 cm, all plastic w/metal tensioning spring.          Lines: one each on back and front
Scales: specialized
Condition: C1 (Mint w/all extras but some extras may not be mint)
Came with: Paper sleeve, instructions

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Slide Back

Well

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