On eBay Now...Vintage Bristol’s Thermo-Humidigraph Model 4069TH For Sale
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Vintage Bristol’s Thermo-Humidigraph Model 4069TH:
$65.00
This vintage Bristol's Thermo-Humidigraph Model 4069 is a unique piece of scientific equipment manufactured in the United States. The instrument is designed to measure temperature and humidity and is perfect for collectors of vintage science equipment or those interested in the history of scientific instruments.
The item has not been tested and is as-is. The instrument is about 100 years old and a neat collectors item. The glass door opens and is not cracked. When open, you can put a paper inside and the instrument will record the temperature and humidity. Early meteorology tool for measuring weather conditions.