CHINE, DYNASTIE QING, MARQUE A SIX CARACTERES EN CACHET EN ROUGE-DE-FER ET EPOQUE DAOGUANG (1821-1850)

The characters are probably based on a select group of forty personalities that were first produced in a set of woodblock prints known as the Wushuang Pu, 'Book of Unique Characters', dated to the 31st year of the Kangxi period (1694).