Zwiebelmuster Mocca Set, Original Bohemia Porcelain from Dubi
Zwiebelmuster Mocca Set, Original Bohemia Blue Onion Pattern from Dubi
6+6 70226 Cup: Volume: 0.08L, Height: 5cm, Diameter: 7cm, Weight: 80g Saucer: Height: 2cm, Diameter: 11cm, Weight: 90g1x 70024 Height: 21cm Volume: 0.90L Weight: 650g
1x 70037 Volume: 0.20L Height: 10cm Weight: 270g
1x 10031 Volume: 0.16L Height: 10cm Weight: 160g
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/