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
Koppalin | Kreis Lauenburg Pomm., Köslin, Pommern, Preussen (unique in the full Meyers dataset)
Meyers page and Wikidata Q2015327 (54.78944,17.85111) both re-fetched this session; distance ~0.145km.