The provenance for this work is Galerie Semiha Huber, Zurich and it was painted in 1950. The measurements for this work are:
image: 15¾ x 23¾ in.
sheet: 17 1/3 x 24 in.
board: 22¾ x 28¼ in.
Madame Michele Vasarely has confirmed the authenticity of this work.