Which two primary components constituted the mechanical design of Gauss's first absolute magnetometer?

Answer

A permanent bar magnet suspended horizontally from a gold fibre

The design consisted of a permanent bar magnet suspended horizontally, using a gold fibre for suspension, allowing its periodic behavior to be precisely observed.

Which two primary components constituted the mechanical design of Gauss's first absolute magnetometer?
inventionmeasurementintensityMagnetismmagnetometer