Color silkscreen, 27 x 31 cm, lo. r. sign. with ballpoint pen Vasarely, lo. l. inscribed E. A. /EXP, framed under glass, uninspected out of frame. - Expertise: with confirmation of the Vasarely Museum, Budapest 4th of June 1991. - French painter and graphic artist, since 1930 in Paris. V. is founder of and most prominent exponent of op art. Mus.: Pécz (Vasarely Museum), Budapest (Vasarely Museum), Aix-en-Provence (Museum Foundation Vasarely). Lit.: Holzhey: Vasarely (2005) a. others.