2 antique vintage raised relief Naiads lady water Nymphs chalk ware plaques

Beautiful rare raised relief style chalk ware plaques. These are from a local estate. Owner, and elderly woman in her 80s stated they were her Mothers and they had been in her home for many years. They are unique, depicting 6 ladies Naiads water nymphs, goddesses with elk stag, goose, some holding Speer or bow. The second one has 6 ladies as well one holding two dogs. They are finished in a reddish colored stain or paint material. A few areas where the finish has rubbed off. A very few places where there is wear to chalk or slight chip/rub on nose of a dog, other areas appear to be where the red has worn off. I have never seen any like them but believe they may depict a more famous painting? Very interesting pieces of old chalk ware gypsum material. The backs have remnants of some newspaper but I think this may have just got stuck to it from moisture as there is so little of it on the two. No other information or markings on back. Happy to answer your questions.