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
Meyers Gazetteer 1912 (id 20133014): 'Mandelatz | , Belgard, Köslin, Pommern, Preussen | 2 Rgr. (A and B)'
Probable by elimination; Wikidata Q1702694 alias Mandelatz, 53.95389, 16.165, Gmina Tychowo.