Meyers Orts- und Verkehrs-Lexikon des Deutschen Reichs (Meyers Gazetteer), online edition, with GOV (genealogy.net) for post-1945 Polish equivalents · meyersgaz.org / gov.genealogy.net
Lüdersdorf 3) Kr. Angermünde Lüdersdorf, Angermünde, Potsdam, Brandenburg, Preussen
Meyers has six exact Lüdersdorf; exactly one is in Kreis Angermünde, the Kreis this row names. Stored pin 52.1869/13.2880 sat near Zossen, 96 km south. Coordinate from the modern gazetteer (Lüdersdorf, now part of Lunow-Stolzenhagen); Meyers' 1912 point 52.9314/14.0773 agrees to about 500 m. #4990 'Lüdersdorf, Barnim, Brandenburg, Germany' is the same village and is reported as a merge candidate.