500 000 000 Mark Reichsbahndirektion
€1.00
| Issuer | City of Erfurt (notgeld) (Prussian province of Saxony) |
| Year | 1923 |
| Type | Emergency banknote |
| Value | 500 000 000 Marks (500 000 000) |
| Currency | Mark (1914-1924) |
| Composition | Paper |
| Size | 141 × 80 mm |
| Shape | Rectangular |
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