Technique: Rare original lithograph by the artist in 1970. R and numbered in pencil. Year: 1970 (45 years) never framed, op art in the wake of the 70 gallery invoice issued by a professional art training Drouot (paris).Any original work is accompanied by an invoice from the gallery. No number of prints communicated, except artist proofs or workshop. Supervision performed by a professional (stamp of the gallery) if part. Professional package (package protected and strengthened). The item \The seller is \This article can be shipped worldwide.