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
Gross Tychow | Belgard, Köslin, Pommern, Preussen
Meyers page fetched this session; Nominatim reverse-geocode of the point returns Tychowo, gmina Tychowo.