The designer couple Lella & Massimo Vignelli designed the Kono coffee table in 1985 in Casigliani Italy. The Kono table consists of a black marble base, the type "Nero Marquina" and a patinated copper cone, which was patinated using a special method. 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