Inside. Note that, unlike the other two, only the hair is on the side. The metal for measuring temperature is in the cadge under the drum.
Thermo-hygrograph Temp: -15°C to +40°C Humid: 0 ~ 100% Date: Nov. 1970 SN: 130289 OTA KEIKI SEISAKUSHO CO., LTD.
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inside Inside. Note that, unlike the other two, only the hair is on the side. The metal for measuring temperature is in the cadge under the drum. |