The Percival David Foundation of Chinese Art (abbreviated as the PDF) holds a collection of Chinese ceramics and related items assembled by Percival David that are on permanent display in a dedicated gallery in Room 95 at the British Museum. The Foundation's main purpose is to promote the study and teaching of Chinese art and culture. The collection consists of some 1,700 pieces, mostly of Song, Yuan, Ming and Qing dynasty porcelain from the 10th century to the 18th. It includes a painting, "Scroll of Antiquities" ( , 1728, Yongzheng's reign).