These are rarely seen 1920s-1930s peach lusterware cups and serving plates Czech-Slovenia made for Kaufmann's Department Store, Pittsburgh, PA. There are 12 plates and 8 cups. Measurements are approximate plates 7 5/8" X 6 1/4" Cups 4 3/8" rim to handle, 3 3/4" diameter rim, 2" H..
They were my grandmothers, and we had cake and tea on them, tomato soup and grilled cheese on them. They were love.I have never seen them anywhere else.