This brush pot of white jade is carved on the outside with a rock-and-wave design containing a bat, a crane, and peach and pine trees—all symbols of good fortune, long life, and Confucian strength. It was most likely in the collection of Prince Gong (Yixin, 1833-98), the sixth son of the Daoguang emperor; it was published in the catalogue of the sale of his collection in 1913.