1923 German Notgeld 1 Billion mark coin from Westphalia (a€?Westfalena€), the face shows the image of Minister Von Stein, a leader in science and other disciplines; notgeld was emergency money produced in Germany during periods of economic or political crisis, and it was issued in many forms: banknotes, coins, linen, wood, stamps, porcelain and even coal, and since the economy was spiraling out of control, youa€?ll see notgeld made by many local towns and provinces; this oversized coin was produced when inflation was rising dramatically, the economy hit rock bottom, and eventually Hitler came to power because of this; the coin is 60 mm wide, 5 mm thick, and made from silver-plated- nickel