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Humidity evaluator
- Made:
- 1950-1970 in United States

Humidity evaluator, in form of circular slide rule, marked USWB [United States Weather Board] No 500. Made by VIZ Molded INSULATION COMPANY, marked MIC 1063-65B. Date 1950-1970
Details
- Category:
- Meteorology
- Object Number:
- 1995-911
- Materials:
- plastic
- Measurements:
-
overall: 28 cm
- type:
- humidity evaluator
- credit:
- Meteorological Office, Berkshire