Pfeiffer Wetzlar Dasymeter
Stock Number: 00 440101e S
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Dimensions
19 x 14,5 x 7 cm.
Circa
1920
Maker
Pfeiffer Wetzlar
Country of manufacture
Germany
Description
A Pfeiffer Wetzlar Dasymeter or baroscop to measure the Buoyancy of Air or the weight of air. A small balance supporting a glass bulb and a small weight on two sides of an arm. When placed in a evacuated bell jar the glass bulb appears heavier due to its greater loss of buoyancy.
On top a pointer and scale. The balance arises from a lacquered brass stand. The stem is inscribed by its manufacturer A Pfeiffer Wetzlar. The company Pfeiffer Vacuum Technology AG is a German manufacturer of vacuum pumps which was founded in 1890. A similar dasymeter is included in the Max Kohl catalogue of 1912 and therefor this dasymeter can be dated about that age.
Dimensions: 19 cm x 14,5 cm x 7
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Dealer information
Van Leest Antiques
Van Leest Antiques
Van Leest Antiques, based in Utrecht in the Netherlands, specialises in antique scientific and medical instruments. Their collection covers mainly scientific and medical antique instruments: barometers, globes and planataria, nautical instruments, anatomical models, and pharmacy items. Toon Van Leest travels regularly in Europe and visits trade fairs, auctions, and antique dealers to collect stock and to find pieces to fulfil his clients' unusual requests.
As well as being an avid antique collector and dealer, Toon Van Leest is also a dentist. He believes that antiques are a stable investment, not reliant on trends or fashion, and have truly lasting value. Above all, he says, antiques are timeless and never lose their beauty.
