Production Of Gold Bars, Ögussa GmbH Factory, Vienna, Austria

Gold bars are classified into two different types, cast and minted, based on their method of manufacturing. Cast bars are made by pouring molten gold into an ingot mold to shape the gold product. Minted bars are made from gold blanks that have been hand cut to the required dimensions from a flat piece of gold. Markings are almost always applied by presses.
Standard bar weights
Gold is measured in troy ounces, often simply referred to as ounce when the reference to gold is evident. One troy ounce is equivalent to 31.1034768 grams.