No other Shunzhi-marked brushrest appears to be recorded. Marked porcelain examples were popular during the Ming dynasty, particularly during the reigns of Zhengde, Jiajing and Wanli. Natural stone formations were also particularly favored by the literati class. For an example of the latter, possibly dated to as early as the Song dynasty, see Michel Beurdeley, The Chinese Collector Through the Centuries, Vermont and Tokyo, 1966, p. 244, cat no. 111. An interesting album of rock paintings dating to the 1640's, which exemplifies the 17th century fascination with such formations, was included in the exhibition, Sacred Mountains in Chinese Art, Krannert Art Museum, Illinois, 1990 and illustrated by Kiyohiko Munakata in the Catalogue, pp. 164-165, no. 83