20 Mark Heidenheim
€468,149.00
| Issuer | Federal state of Württemberg |
| Year | 1918 |
| Type | Local banknotes |
| Value | 20 Marks |
| Currency | Mark (1914-1924) |
| Composition | Paper |
| Size | 138 × 88 mm |
| Shape | Rectangular |
| Printer | |
| No. printed | |
| Designer(s) | |
| Engraver(s) | |
| In circulation to | 1 February 1919 |
| Reference(s) | DeNG 11#145A.1d |