Dating Porcelain is the process of determining the age and origin of porcelain by studying factory marks, decoration, paste, glaze, shape and manufacturing techniques. Changes in maker\'s marks, hand-painted decoration, gilding and firing methods often provide valuable evidence for dating antique porcelain. Collectors also consider wear, provenance and historical production records when assessing authenticity. *Related Terms*\ Bone China, Factory Marks, Glaze, Maker\'s Marks, Porcelain, Provenance.