The billet can become a coin after being stamped. At the same time as the coin is stamped on the billet, the design and mold-making work has begun in another mold-making workshop. So how is the pattern of military coins formed?

Military coins are coins that are made of metal. You may be wondering how to engrave patterns on metal? How does the coin pattern go from flat to three-dimensional? And how is the coin imprinted?