This tureen once had its portrait done

I have this faience (enamel glaze on earthenware) tureen and I think it's Moustiers. However I'm not sure about the age of it anymore.

Moustiers faience can be tricky to date, because it's been made this way at least from the early 18th century, through the 19th and 20th. Although they started to use marks at some(?) point during the 20th. Plain white faience is even more difficult to date, at least in my opinion.

I read somewhere that most of the faience makers in Moustiers de Sainte-Marie had quit by the middle of the 19th century due to different porcelain and ceramic dishes being more popular. There was a revival in the early 20th century, but I don't know exactly when, possibly the 1930's. The French Wikipedia has a substantial artile on faience de Moustiers, if your French is better than mine: https://fr.m.wikipedia.org/wiki/Faïence_de_Moustiers

My tureen is a rococo style soup tureen, the design probably dating to the third quarter of the 18th century. I suppose it may have been made originally up until the early 19th century. Was is re-introduced decades later, that is the main question.

While researching Moustiers tureens, I came across a picture of a painting (rather several similar paintings) by Dunoyer De Segonzac, painted around 1940.
http://www.mchampetier.com/Lithograph-André-Dunoyer.de.Segonzac-44834-work.html
and another one http://www.artnet.fr/artistes/andré...soupiere-de-moustiers-gMtmPvi02PNvVgQWNPKIKw2
Both paintings, titled "Nature morte a la soupière de Moustiers" are still life paintings featuring the same exact tureen design along with other objects.

Should I take this as a clue to the age of the tureen, despite having seen a decorated version of the same design up for sale as circa 1800? Or was the artist merely depicting a tureen, which at the time was already antique? I'm not familiar with his work or the subject matters.

Here's the same tureen design with green painted decorations: https://www.pinterest.com/pin/508203139186463223

So, do you think my tureen was made in the 18th, 19th, or the 20th century? The level of wear and tear seems to make any of those possible. I've been looking at pictures of 18th century faience tureens and the close details do look similar. Of course that alone isn't enough.

 

Here's a short article in english for those interested in a bit of a look into Moustiers faience. https://www.britannica.com/art/Moustiers-faience