gouache on cardboard 22,5 x 28 cm signed lower right: "Jos. Navratil "   Provenance: -     significant collection of collector and banker Bohuslav Dusek, Prague -     collection of the Bohuslav Dusek family   Consulted with Professor Jaromir Zemina, Dr Jiri Machalicky and Vladimir Lekes.    Confirmation of authenticity attached.