Postrum was formerly part of the German Empire. In the German Empire, the place was called Postrum.
The place is now called Postřelná and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Postrum | Austro-Hungary | Gabel | before the Treaty of Saint-Germain |
| Postřelná | Austro-Hungary | Gabel | before the Treaty of Saint-Germain |
| Postřelná | Czechoslovakia | Německé Jablonné | after the Treaty of Saint-Germain |
| Postrum | Czechoslovakia | Německé Jablonné | after the Treaty of Saint-Germain |
| Postrum | German Empire | Deutsch Gabel | 1938 |
| Postřelná | Czechoslovakia | Liberec | 1945 |
| Postřelná | Czechoslovakia | Česká Lípa | 1992 |
| Postřelná | Czech Republic | Česká Lípa | 1993 |