Star mark without the words "Limoges" and "France" above and below was used prior to 1890. Mark with "Made in France" above star used 1914-1920s.
The Coiffe factory made many porcelain blanks decorated by other companies so many times an accompanying mark will identify the decorating factory. Coiffe blanks were also exported to the United States for use by both novice and professional china painters at the turn of the last century. (Reference: The Collectors Encyclopedia of Limoges Porcelain)


