Concise 380 Radio Computer Circular Slide Rule

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Country of manufacture: Japan,            Date of manufacture: ____
Diameter: 112.4 cm,          Thickness: 0.6 cm,           Weight: 53.1 gms
Materials: All plastic, 2 sided
Cursor: all plastic, one hairline front and back
Scales:14
Front: Outer ring: C, Inner ring: L, F, Xc, Freq., Lambda, Fcs
Back: Outer ring: C, Inner ring: L, F, X, dBw, dBv, XL
Gauge Marks: [       ]
Condition: C0 (Mint, with all accessories in mint condition)
Came with: Plastic slipcase and instruction booklet (in Japanese)

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