The product is a vintage Kern Aarau Swiss Math & Engineering drafting set, consisting of 9 pieces including a compass. Manufactured in Switzerland, this set is a collectible item for individuals interested in science, medicine, and engineering from the 1930s to the present day. The brand's reputation for quality and precision makes this set a valuable addition to any drafting tool collection. Flaw: incomplete. 10th tool missing. See attached image for more details.
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