zwiebelmuster-reisschale-tulip-hoch-14cm-original-bohemia-porzellan-aus-dubi
Zwiebelmuster Rice Dish 14cm, Original Bohemia Blue Onio Pattern from Dubi
Height: 7cmDiameter: 14cm
Weight: 300g
The Painting (Onion Pattern) is under the glaze which makes the product safe to use in microwave and dishwasher. Breaking the product with a force is the only way to interrupt the painting.
(Glaze is thin, clear, and protective material applied to ceramics)
The product is very safe to use - more at http://www.zwiebelmuster.eu/zertifikat-zwiebelmuster/
In Czech Republic, There are many producers of Blue Onion Pattern, but only Bohemia Blue Pattern from Dubi using this trademark:

The trademark has been modified over the years. More you can find here: http://www.zwiebelmuster.eu/geschichte/