Jade; upper part has a form of a feline head with capped horns; monster (t'ao-t'ieh) mask; ends in sharp arrow-like tip with… https://www.rawpixel.com/image/7656310/photo-image-arrow-texture-plantFree Image from public domain licenseMonster animal mask with horns may identify as a bull-mask; double line incised details on only the front side. Grey-blue… https://www.rawpixel.com/image/7656312/photo-image-vintage-art-public-domainFree Image from public domain licenseMask of a monster like animal (t'ao-tieh); carved interrupted outline; incised double line on both sides, detailed features… https://www.rawpixel.com/image/7656519/photo-image-face-vintage-artFree Image from public domain licenseDark green jade with black and white clouds.. Original from the Minneapolis Institute of Art. https://www.rawpixel.com/image/7655796/image-clouds-vintage-artFree Image from public domain license