Zwiebelmuster Dish Square Set 5 pcs, Original Bohemia Blue Onion Pattern from Dubi

1x 10486 Height: 4cm Proportions: 21 x 21cm Weight: 570g
4x 20072 Height: 4cm Proportions: 9.5 x 9.5cm Weight: 140g

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/