Heidchen, Oberförsterei was formerly part of the German Empire. In the German Empire, the place was called NN.
The place is now called Boruszynek and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Heidchen, Oberförsterei | German Empire | Obornik/Obernick | before the Versailles Treaty |
| Boruszynek, Nadleśnictwo | Poland | Czarnków | after the Versailles Treaty |
| NN | German Empire | Scharnikau (Wartheland) | 1939 |
| Boruszynek | Poland | Czarnków | 1945 |
| Boruszynek | Poland | Piła | 1992 |