Thank you for submitting your item for appraisal. This appears to be a lithograph in colours from "Reclining Figure Architectural Background IV" published in 1977 from the last edition published by N. Hélion, Paris in an edition of 100, this print apparently number "21". Image size (not sheet size) should be : 317 x 381 mm. The estimate is based on similar items sold at auction in recent years. As always "asking prices" in the trade are usually higher and can vary.