The magnet is contained in a copper case (6.7 x 5.6 cm, height 6.5 cm) decorated with grooves that are round on the faces and straight at the edges; it is equipped with a hook for hanging on a wooden staff (height 33 cm) supported by a rectangular platform (30 x 12.5 cm, height 33 cm), it too wooden, both well lathed.
The polar expansions (1.9 x 0.9 cm section) extend beyond the case by 1.2 cm.
The staff lacks the original hook for hanging the magnet.

Daguin (1878), T. III, p. 6, p. 49
De La Rive (1854), T I, p. 152
Ganot (1864), p. 496
Turner (1983), p. 174

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