Jürgen Friedrich Mahrt (1882-1940) left behind a large collection of taxidermied birds and butterflies, as well as countless photographs, documenting the wildlife habitats of his time, many of which no longer exist today. His great-granddaughter has the collections analyzed by experts.
CinePops US / International 
CinePops Spain 
CinePops France 
CinePops Italy 
CinePops România 