AS Voltmeter "pocket watch" - Argentan - 1910-1920

In its wooden box covered with fabric and antique upholstery, a high-precision pocket voltmeter for direct current, specifically manufactured by AS / Omega in the 1920s/30s for use by SNCF and the army. Diameter of the pocket voltmeter: 52 mm, thickness: 25 mm. The two suspension wires supporting the mechanism demonstrate the extreme precision and great fragility of the instrument. Good condition. Shipped with insurance.

Stima:€130

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