1 Mark
€1.00
| Issuer | Langenhorn in Nordfriesland, Municipality of |
| Year | 1921 |
| Type | Local banknote |
| Value | 1 Mark |
| Currency | Mark (1914-1924) |
| Composition | Paper |
| Size | 91 × 61 mm |
| Shape | Rectangular |
| Printer | Gebh. & Kunze, Flensburg, Germany |
| No. printed | |
| Designer(s) | |
| Engraver(s) | |
| In circulation to | 31 March 1922 |
| Reference(s) | DeNG 1/2#GrM:0768.1-3/3 |