Frequently depicted in Ming and Qing dynasty woodblock illustrations, chairs of this elegant silhouette were commonly produced in sets of two or four and used while dining, painting or receiving guests. With the addition of two carrying poles, they were converted into sedan chairs reserved for officials of high rank, and as mentioned in Craig Clunas, Chinese Furniture, London, 1988, p. 24, they were considered 'markers of high status, seats of honour'. The inviting capacious arched crestrails were inspired by chairs of nearly identical shape but made of pliable lengths of bamboo, bent into a U-shape and bound together using natural fibers. Highly popular for their lightweight, sturdy and strong appearance, cabinet makers cleverly adapted this design to the rarer, more costly hardwood furniture by creating ingenious joinery techniques. In order to create the continuous back, members were fitted together with a cut-out to accommodate a tapered wood pin that would lock them firmly in place when inserted. The complexity of the design required utmost precision, as a slight error in the tilt of any of the joins would be magnified by the adjoining members. Once the lacquered coat was applied to the surface crestrail, the underlying joinery was not visible and virtually impossible to wrest apart. For further discussion on this design, see Robert Ellsworth, Chinese Furniture, New York, 1970, pp. 86-87, and Wang Shixiang, Connoisseurship of Chinese Furniture, vol. 1, Hong Kong, 1990, pp. 43-45. A similar pair of horseshoe back armchairs with a plain backrest and shaped apron, sold at Christie's New York, 24th March 2023, lot 1151. See also a pair with plain back slat sold in our New York rooms 15th March 2016, lot 41 and more recently, 25th November 2022, lot 518, from the collection of the Reverend Richard Fabian.