Kolba, Judit H. Hungarian Silver: The Nicolas M. Salgo Collection. London, 1996.
Herrengrund wares take their name from the mining town which produced them, in the country of Sohl in Hungary, now Slovakia. Copper existed in the mines in the form of copper sulphate in the mine waters, this copper sulphate could be precipitated into a metallic state with the addition of iron and zinc and subsequently refined. The process was felt to be almost magical and it was emphasized by the rhyming inscriptions which appear on the vessels by alluding to the unique chemical properties of the water found in the Herrengrund mine. Indeed, the inscription on the vessels generally translate to: "Iron I was, copper I am, gold cover me, out of iron ___ copper is made, to Herrengrund very deep in the mineshaft" or "Iron I was, copper I am, gold covers me, good drink fills me." These commemorative cups were also often produced with a miner bearing iron pyrite crystals in the centers.