A HUGE celadon nephrite jade seal, unusual scholar's article, one side brown, the sides carved with Warring States C-scrolls motif, surmounted by a writhing chilong (baby dragon), key-fret border, the base precisely carved with 4-character yang-style seal "Hsien Pong Yu Yin" ("Jade Seal of Hsien-Pong") within a border.  More than 3/4 pounds of quality nephrite jade!