Friedrich may have a better idea since he is an expert on pottery/porcelain from that area or Chris Marshall who owns the top reference site for pottery/porcelain from that area !! www.porcelainmarksandmore.com !! Maybe they will take a look !!

If the mark is not an under glaze mark,, then it is probably either a retailer or an importers mark !! I did not find any record of it so i am betting a retailers mark !! Was a common practice for retail stores to order items with their own mark !! Many major department stores still do this !! Possible it was made in the Limoges area of France but no records exist of stores that purchased from the studios there that I know of !!

More pictures…..

Here are a few pictures. It feels like the mark is not an underglaze mark. Thanks for your help.

Can you post a pic of the item ?? The lid would not be marked !! Is the mark under the glaze or on top ??