oil on canvas Dimensions: 142 x 88.5 cm signed and dated lower left: JPreisler 906. verso old stamps: K.K. Hauptzollamt Prag (Prague Customs Office)  One of the most important oils of Jan Preisler.Iconic work of European symbolism.  Provenance: - collection of important Prague collector Bohuslav Dusek - collection of the Bohuslav Dusek family   Exhibited.  Published.    Consulted with experts of the National Gallery, Professor Petr Wittlich, Professor Jaromir Zemina, Dr. Karel Srp, Dr. Jiri Machalicky, Aneta Kopecka and Vladimir Lekes. 
Confirmation of authenticity attached.