Detail
Type Ab. - Regienenhof is a Abbau (Surface Mine).
Type Gut - Regienenhof is a Gut (Estate).
Kr Heiligenbeil - The Kreis for Regienenhof is Heiligenbeil. A Kreis is a government district (similar to a U.S. county).
See Brandenburg 2) Ostpr. - A See notation means the entry is dependent on another entry. In this case, Regienenhof is dependent on Brandenburg 2) Ostpr., which should be consulted for additional information.