METEROGRAPH Temp. -15°C to +40°C Humid. 0 ~ 100% Press. 705 - 785 mmHg SN: 127153 Date. November 1970 OTA KEIKI SEISAKUSHO CO., LTD. This one is in fairly poor condition. The glass is broken, the drums spring is bad, one of the pen arms seems short, the drum seems a bit tall for the enclosure (scrapes on the lid when you open it) and no key fits a drum of that height well.
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