Bergeon 30103 Precision Compass in Hardwood Box 13mm Detecting Magnetism Swiss

For detecting magnetism. Jewelled sapphire model on a hardened steel point, with chromium-plated brass. Engraved dial 13mm. Size: 40mm x 40mm x 20mm. Principle: An object is magnetized when one end of the compass needle is attracted while the other end is repelled. If the needle is attracted at both ends, there is no magnetism. We only sell brand new products. 100% Made by Bergeon Swiss and brand new.