| 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. |
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| more Informations: | Torsion-balance at Wikipedia | |
| Hartmann und Braun (german) |
     
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