Measuring instrument - Steel - 1910-1920 - Ammeter
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Selected by Ashley Calvert
He has 15 years of experience trading 20th century glass and antiques.
Estimate € 100 - € 150
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Industrial analogue ammeter in a heavy steel case by Brown, Boveri & Cie, Baden, Switzerland, dating to ca. 1910–1920, with a 0–300 A scale, 9 cm high, 22 cm wide and 22 cm deep, in excellent condition with minimal signs of wear.
AI-assisted summary
Description from the seller
An old industrial ammeter, more precisely an analog moving-iron ammeter, designed to measure high electrical currents.
Type: Ammeter (scale graduated in Amps)
Measurement range: about 0 to 300 amperes
Manufacturer: Brown, Boveri & Cie
Place of manufacture: Baden, Switzerland
Period: early 20th century, most likely 1910s–1920s
Visible clues confirming this
The inscription “BROWN, BOVERI & CIE – BADEN – SWITZERLAND”, typical of industrial instruments of the era
The heavy metal housing, designed for use in a power plant or switchboard
The large mechanical needle and the beige-dial background, features of pre-electronic precision instruments
The high range (300 A) indicates industrial use (factories, power stations, railways, distribution networks), not domestic
This type of ammeter typically operated:
either with an external shunt (high current derived, indirect measurement),
or by electromagnetic effect (moving coil or moving iron), robust and reliable for alternating or direct current.
Seller's Story
I am a seller of a wide range of antiques and collectibles dating from different eras, my items are certified by auctioneers to ensure the reliability of my items.
Translated by Google TranslateAn old industrial ammeter, more precisely an analog moving-iron ammeter, designed to measure high electrical currents.
Type: Ammeter (scale graduated in Amps)
Measurement range: about 0 to 300 amperes
Manufacturer: Brown, Boveri & Cie
Place of manufacture: Baden, Switzerland
Period: early 20th century, most likely 1910s–1920s
Visible clues confirming this
The inscription “BROWN, BOVERI & CIE – BADEN – SWITZERLAND”, typical of industrial instruments of the era
The heavy metal housing, designed for use in a power plant or switchboard
The large mechanical needle and the beige-dial background, features of pre-electronic precision instruments
The high range (300 A) indicates industrial use (factories, power stations, railways, distribution networks), not domestic
This type of ammeter typically operated:
either with an external shunt (high current derived, indirect measurement),
or by electromagnetic effect (moving coil or moving iron), robust and reliable for alternating or direct current.
Seller's Story
I am a seller of a wide range of antiques and collectibles dating from different eras, my items are certified by auctioneers to ensure the reliability of my items.
Translated by Google TranslateDetails
Era
1900-2000
Title additional information
Ammeter
Country of origin
Switzerland
Material
Steel
Condition
Excellent condition: barely used with minimal signs of wear
Height
9 cm
Width
22 cm
Depth
22 cm
Estimated period
1910-1920
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