Riser and lower table from Les Arcs, France, designed by Charlotte Perriand. Designed in the 1970s to furnish the Résidences Nova and Les Lauzières in Les Arcs 1800, it features a square top made of solid pine with glued laminated wood, and a cruciform black lacquered metal leg with a jack-operated raise and lower system that allows it to be adjusted from 53 cm to 75 cm. Bibliography: Charlotte Perriand, L'Oeuvre Complète, vol. 4, p. 268, Jacques Barsac, Edition Norma. I have official proof of authenticity such as vintage catalogs, designer records, or other literature sources and take full responsibility for any authenticity issues arising from misattribution