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DOUBLE-ARMED TORSION-BALANCE - HARTMANN UND BRAUN - GERMANY - AROUND 1930
Name:
Double-armed Torsion-balance
Designer:
Factory Design
Year:
around 1930
Maker:
Hartmann und braun, Berlin
Country:
Germany
Measurements:
H 45 cm W 35 D 20 cm
Material:
Matt black painted steel, glass
Condition:
very good condition
Specific Characteristics:
Sides can be opened from behind and locked, in the front is an intact dragonfly. Buttons on the Fronseite probably replaced.
Price:
see eBay auction


eBay auction of this instrument
about this Item:

A particularly fine vast, mechanical torsion of the traditional manufacturer HARTMANN und BRAUN, Berlin. The origin can only be estimated. From behind an interesting label is applied, "Notgemeinschft Deutsche Wissenschaft", the sides are open to introduce fine weights and weighing material. As far as I can tell, it works, for safety's sake I judge only the judgment of the optical non-technical condition.

more Informations:
Torsion-balance at Wikipedia

Hartmann und Braun (german)

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