This little beauty seems to be similar to one in Kerophiles lovely French Catalogue Image 2. Tank 1 is date stamped W1, and Tank 2 is date stamped W2. Both are Primus 54's, which would tie up with the No 54 DB, in the catalogue.
Gorgeous ! I have no idea abroad, but those colorful enameled cast iron trivets were very common in France. Most of them are framing an alcohol stove though. Interested buyers may have a look here .
Great colour that combines lovely with the hue of copper! This casting makes for a very sturdy cooking platform that I think could house a few other models as well -like with silent regulated burners. Beautiful as well as practical, congrats!