Buy gold bullion bars from Argor Heraeus. Argor Heraeus is one of Switzerland's most prominent precious metals refineries. Their gold bars are available in sizes ranging from 1 gram to 1 kilogram, with 1 gram and 100 gram gold bars being the most popular sizes. Argor Heraeus also produce the Kinebar, which is a gold bar with a hologram inscribed with a laser onto the bar. Argor Heraeus manufacture gold bullion bars for a number of other brands, including UBS, Raiffaisen and the Austrian Mint. Argor Heraeus gold bullion bars may be purchased for tax-free storage in Zurich, Switzerland or for delivery worldwide. Gold bars can be purchased with Bitcoin, Altcoins, or via bank transfer.