charcoal on paper
44,8 x 20,8 cm
signed lower right: Kupka
further signed with estate stamp
Confirmation of the authenticity by Vladimir Lekes, author of the official Catalogue Raisonné of Oil Paintings by Frantisek Kupka (published in collaboration with Adolf Loos Apartment and Gallery, National Gallery in Prague, Austrian National Gallery Belvedere and the copyright holder of the painter by the French state company Adagp Paris) registered in the Guide International des experts et spécialistes, published in France, enclosed.
Certificate of authenticity by Pierre Brulle dated on March 4, 1999 enclosed.
Consulted with Dr Irena Zantovska Murray HonFRIBA, Professor Jaromir Zemina, Dr Jiri Machalicky.