Hygrometer - Brass, Wood, Glass, Enamel - Antique Psychrometer
04
days
09
hours
28
minutes
52
seconds
Current bid
€ 29
No reserve price
Expert
Selected by Paula Martin-Calero Toro
Holds a degree in art history; over six years cataloguing and appraising antiques.
Estimate € 110 - € 160
14 other people are watching this object
 Bidder 3296 | €29 | |
|---|---|---|
 Bidder 4259 | €24 | |
 Bidder 6509 | €19 | |
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Antique psychrometer from the Netherlands, circa 1930, made of brass, wood, glass and enamel, in good condition with minor signs of aging and featuring two thermometers, a glass tube and an enamel table for reading relative humidity.
AI-assisted summary
Description from the seller
A fine antique psychrometer made in the Netherlands around 1930. Likely manufactured by Arnoldus van der Korput from Baarn (1887-1968).
It is an ingenious device. It consists of a bottom glass tube, with a thermometer on the left and right.
Between the two thermometers hangs a beautiful enamel chart. It works as follows: by evaporation, a liquid in the lower glass cools down. How much it cools depends on the amount of vapor in the air. This device measures humidity. The glass tube at the bottom is filled with water. On the right side of the glass, there is an opening through which the vapor can escape. The right thermometer measures the temperature of the MOIST air. The left thermometer measures the temperature of the DRY air. Sometimes, a piece of cardboard is waved to speed up the process. Now, you select the temperature of the wet thermometer and the dry temperature on the left in the table. You can then read the relative humidity in percent from the table.
The instructions are also fully at the bottom of the table.
The enamel tables, glassware, and thermometers are in perfect condition and still function well. The clamps that hold the thermometers and tubes show some rust. I consider their condition to be very good. If desired, you can replace the clamps with new ones, which are still available for purchase.
This item has hung in my ice skating museum for years, because measuring humidity, temperature, and air pressure is very important for determining whether it will freeze or thaw.. it's quite helpful if you want to go skating on natural ice or participate in an Elfstedentocht :)
A fine addition for the collector of scientific instruments.
Note: NO RESERVE PRICE AUCTION
We have global experience in shipping fragile antiques and curiosities.
The seller is not responsible for additional customs costs outside Europe.
Your item is carefully packed in recyclable packaging.
Important information: The seller has no influence on the summary of this description created by Catawiki with AI software, which may sometimes contain gross errors. Therefore, please always carefully read the original and complete description. The displayed photos are also part of the description.
Happy bidding
Regards from Hans Brinker (Silver Skates & sporting goods) museum
Happy bidding
Regards from Hans Brinker (Silver Skates & sporting goods) museum
A fine antique psychrometer made in the Netherlands around 1930. Likely manufactured by Arnoldus van der Korput from Baarn (1887-1968).
It is an ingenious device. It consists of a bottom glass tube, with a thermometer on the left and right.
Between the two thermometers hangs a beautiful enamel chart. It works as follows: by evaporation, a liquid in the lower glass cools down. How much it cools depends on the amount of vapor in the air. This device measures humidity. The glass tube at the bottom is filled with water. On the right side of the glass, there is an opening through which the vapor can escape. The right thermometer measures the temperature of the MOIST air. The left thermometer measures the temperature of the DRY air. Sometimes, a piece of cardboard is waved to speed up the process. Now, you select the temperature of the wet thermometer and the dry temperature on the left in the table. You can then read the relative humidity in percent from the table.
The instructions are also fully at the bottom of the table.
The enamel tables, glassware, and thermometers are in perfect condition and still function well. The clamps that hold the thermometers and tubes show some rust. I consider their condition to be very good. If desired, you can replace the clamps with new ones, which are still available for purchase.
This item has hung in my ice skating museum for years, because measuring humidity, temperature, and air pressure is very important for determining whether it will freeze or thaw.. it's quite helpful if you want to go skating on natural ice or participate in an Elfstedentocht :)
A fine addition for the collector of scientific instruments.
Note: NO RESERVE PRICE AUCTION
We have global experience in shipping fragile antiques and curiosities.
The seller is not responsible for additional customs costs outside Europe.
Your item is carefully packed in recyclable packaging.
Important information: The seller has no influence on the summary of this description created by Catawiki with AI software, which may sometimes contain gross errors. Therefore, please always carefully read the original and complete description. The displayed photos are also part of the description.
Happy bidding
Regards from Hans Brinker (Silver Skates & sporting goods) museum
Happy bidding
Regards from Hans Brinker (Silver Skates & sporting goods) museum
Details
Era
1900-2000
Title additional information
Antique Psychrometer
No. of items
1
Country of Origin
Netherlands
Material
Brass, Enamel, Glass, Wood
Condition
Good condition - used with small signs of aging & blemishes
Height
30 cm
Width
20 cm
Depth
5 cm
Estimated Period
1920-1930
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