Lithograph in colours. E.A., Épreuve d'artiste s/. Japon, artist's proof outside the edition of 110. Signed in pencil lower right: Serge Poliakoff. Image 50.7 × 65 cm on Japan paper by BFK Rives 56.7 × 76.7 cm. Published by Nesto Jacometti, L'Œuvre Gravée, Zürich (with the blindstamp). Printed by Pons, Paris.