Astatic Galvanometer, Nobili Pattern by Museo Galileo (source code)

= Astatic Galvanometer, Nobili Pattern by Museo Galileo
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https://catalogue.museogalileo.it/object/AstaticGalvanometerNobiliPattern.html

Museum inventory 1417, dated 1840, identifies a many-turn fine-wire instrument with <Carlo Matteucci>'s muscle-current research. Its inscription reads “Galvanometro del Matteucci / 1840 / Corrente Muscolare”.