![Part of a electrometer](https://coimages.sciencemuseumgroup.org.uk/339/349/large_smg00174976.jpg)
Part of a electrometer
Part of a electrometer, wooden base with brass attachments.
First divided ring (semicircular) electrometer
Part of a electrometer, wooden base with brass attachments.
Parts of an electrometer, glass dome covered in a metalic material, with four semi circular measures.
electrometer parts, glass cover for electrometer with brass attachments.