Berthold Koberstein was from Balz, Landsber/W. as per Ancestry.com Database: Brandenburg, Prussia Emigration Records

Koberstein, Berthold
Age: 27
Occupation: Eigenthuemersohn
Place of origin: Balz/Landberg
Destination: Nord-Amerika
Year: 1856.

 As per http://www.genealogienetz.de/reg/BRG/neumark/ortlistb.htm

Balz, Poland is:

Deutsch	Polnisch	Kreis	Latitude	Longitude
Balz	Bialcz	Landsberg/W.,Nm.