| Issuer | Helgoland, Municipality of |
|---|---|
| Year | 1919-1921 |
| Type | Local banknote |
| Value | 50 Pfennigs (50 Pfennige) (0.50) |
| Currency | Mark (1914-1924) |
| Composition | Paper |
| Size | 70 × 45 mm |
| Shape | Rectangular |
| Printer | H. W. Köbner & Co. GmbH, Altona, Germany |
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| Numisquare ID | 5567028550 |
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