1. KorbenDallas

    Slavyanovsky Glass - 19th Century Welding

    “Slavyanovskiy glass” is a sample of welding from eight ferrous and non-ferrous metals that were considered incompatible at that time: bronze, nickel, steel, copper, cast iron, bell bronze, tombac, nickel silver. It is a faceted metal cylinder (called a glass by its shape) weighing 5,330 grams...