duo old service dishes in lantled porcelain

Set of 2 serving dishes in old porcelain (xixth?): hollow flat h7cm and flat h3, 5cm. Porcelain border with openwork "lace" pattern, fine black contour border, yellow tint inside. Hollow flat dimensions: diameter 25.5 X h7cm. Flat dimensions presentation: diameter 25.5 X h3.5cm. One of the 2 pieces is annotated / signed under the bottom (provenance not identified) Very good condition (neither shine nor crack), note some "grains" in the dough (original, related to the raw material) and some lack of yellow coloration (also original).