mixed media, watercolor on paper
cut-out passe-partout: 48 x 31 cm
signed with author's stamp lower right: Kupka

Confirmation of the authenticity by Vladimir Lekes, author of the 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.

Further consulted with Dr Irena Zantovska Murray HonFRIBA , Professor Jaromir Zemina, Dr Jiri Machalicky.