Factory mark

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20th-century Jingdezhen ware, with factory mark: 中国景德镇 ("China Jingdezhen") and MADE IN CHINA in English

A factory mark is a symbolic marking affixed by manufacturers on their productions in order to authenticate them. Numerous factory marks are known throughout the ages, and are essential in determining the provenance or dating of productions.


Factory marks are essential in the area of porcelain production especially, where they are sometimes also called "backstamps", and where their absence would make authentication much more difficult.[1][2]


  1. ^ Barber, Edwin Atlee (11 December 2016). "Artificial Soft Paste Porcelain - France, Italy, Spain and England". Read Books. Retrieved 11 December 2016 – via Google Books.
  2. ^ [1][permanent dead link]