Detail
Type Gut - Beyers Fischergut is a Gut (Estate).
Kr Oststernberg - The Kreis for Beyers Fischergut is Oststernberg. A Kreis is a government district (similar to a U.S. county).
See Sonnenburg Neumark - A See notation means the entry is dependent on another entry. In this case, Beyers Fischergut is dependent on Sonnenburg Neumark, which should be consulted for additional information.