Neu-Obra was formerly part of the German Empire. In the German Empire, the place was called Neu Obra.
The place is now called Obra Nowa and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Neu-Obra | German Empire | Koschmin | before the Versailles Treaty |
| Obra Nowa | Poland | Krotoszyn | after the Versailles Treaty |
| Neu Obra | German Empire | Krotoschin | 1939 |
| Obra Nowa | Poland | Krotoszyn | 1945 |
| Obra Nowa | Poland | Kalisz | 1992 |