oil on cardboard Dimensions: 74 x 56 cm signed lower left: AP  verso inscription by author's hand: Antonin Prochazka, Girl in a Hat, around 1908   Provenance: significant collection, Prague   Exhibited. Publicated.   Expertise by Professor Jaromir Zemina attached. Consulted with Dr Karel Srp, Dr Jiri Machalicky, Dr Marcela Macharackova, Dr Pavla Pecinkova and Alena Havlikova.  Confirmation of authenticity attached.                The work comes from a rare period of the formation of the group Osma.