Brain models of trout around 1960

Old and rare teaching material (display model, anatomical model) from the Zieglerschen series according to Prof. Dr. Wiedersheim "Brain Models of Vertebrates"; original around 1960; No. 6 - Salmo Trout; Dimensions with stand: 19.5 cm; Condition: chipping at the bottom (see photos); German Hygiene Museum Dresden - GDR; painted, probably made of plaster; light blue round stand; traces of use according to age