When is calligraphy suitable for auction? Spring shoot or autumn shoot? Is the mainland better or Hong Kong better? What are the good auction companies? Seek a detailed explanation

Calligraphy works have no time problem, and they can be taken in spring or autumn. The key lies in the work itself. If it is a "national grain coupon" (generally referring to the works of Zhang Daqian and Fu Baoshi), it is suggested to choose Poly and Guardian for auction (if things are in Hong Kong, they can be entrusted to their Hong Kong branch for auction). If it is a "regional food stamp" (generally referring to the works of "Jinling School of Painting" and "Lingnan School of Painting"), it is suggested to choose well-known auction companies in provincial capital cities such as Nanjing and Guangzhou for auction.