Metal alloy tester

Description

The presented instrument is used to measure precious metal alloys based on the Archimedes law. The most popular alloys were silver with copper or silver with gold. Izrael Abraham Staffel – manufactory mid–19th century, Warsaw Jagiellonian University Museum Collegium Maius Inventory number:16282; 1862/V https://muzea.malopolska.pl/en/objects-list/2775