oil on sololite Dimensions: 20 x 15 cm signed lower right: M.  signed and dated verso: MATAL – 74  inscribed and dated verso: Ptačí herec 1974    Provenance: private collection, Vienna   Consulted with Professor Jaromir Zemina, Dr Karel Srp, Dr Jiri Machalicky and Alena Havlikova.   Confirmation of authenticity attached.