Flying Fish Metereological (Humidity) slide rule

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Country of manufacture: China,            Date of manufacture: ____
Overall length: 34.0 cm,          Width: 4.8 cm,           Weight: 101.9 gms
Materials: all plastic, glued-on end braces
Cursor: 3.8 X 5.9 X 0.8 cms; all plastic, adjustable; lines = single hairline, front and back
Scales: 23, specialized
Front:
Back:
Gauge Marks: [      ]
Condition: C0 (Mint, with extras)
Came with: Original blue plastic box/case, manual (Chinese)

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