Hamburg Coin ½ Million Mark

 (German notgeld) 

1923

Type Standard circulation coin Year 1923 Value 500 000 Mark (500 000) Currency Mark (1914-1924) Composition Aluminium Weight 2.0 g Diameter 27.8 mm Thickness 1.6 mm Shape Round Technique Milled Orientation Medal alignment ↑↑ Demonetized Yes