Chinese Imperial Reign Marks 205 + 199 pages Color photos Hard cover - 2 Volumes in slipcase 21 x 18 cm 1,417 kg English This unique study identifies and classifies Imperial reign marks on Chinese porcelain from the Qing to the Ming periods. This study identifies and classifies Imperial reign marks on Chinese porcelain from the Ming to the Qing dynasties. Working on the theory that only a few artists created these marks, Christer Löfgren, a former antiquities dealer in Chinese porcelain, created a database with thousands of so-called 'mark and period' brands. This survey, 15 years in the making, covers all the Ming emperors, from the 15th century to the last emperor during the Qing period, including Hongxian, up until 1920.