Victor Vasarely set of 4 prints

Beautiful set of 4 prints of Victor Vasarely. It is a serie of 4 prints, no silkscreen and not numberd. The artist Victor Vasarely was one of the main representatives of the Op-Art. The print is framed and are in a good condition given it's age ( small discolouration). The size of the frame is 25,7 cm high and 25,7 cm wide, the work itself is 10,5 cm wide.