20 000 000 000 Mark
€363,782.00
| Issuer | Mainz, City of |
| Year | 1923 |
| Type | Local banknotes |
| Value | 20 000 000 000 Mark (20 000 000 000) |
| Currency | Mark (1914-1924) |
| Composition | Paper |
| Size | 172 × 90 mm |
| Shape | Rectangular |
| Printer | |
| No. printed | |
| Designer(s) | |
| Engraver(s) | |
| In circulation to | |
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