Mid Century Modern Illustrated Ceramic Hors D'oeuvre Trays Rosenthal Netter Italy

Am hoping that SOMEBODY out there has seen these or has some idea who made them , or whatever. I have owned them for some long time and know nothing about them, nor can i seem to find anything like them. Figures are certainly 1950s style women in various dress and poses, with raised ceramic dresses etc. There is something familiar about the illustrations, but I cannot put my finger on it. Any help here would be greatly appreciated. These can't be the only three in the world.
My wife feels that they are somehow associated with Rosenthal Netter, because of the basket. The 10.5" square basket has a paper tag with "made in Italy" and the ceramic pieces are marked simply; "378 Made in Italy".
Thanks for looking. I am looking forward to hearing from somebody with any ideas.....