Three official languages ​​in one country, how far must we go?

Belgium is having a hard time. If you recognize three languages ​​as official languages, what is to do with the stamps? The official languages ​​are French, Dutch, and German. Naturally, these languages ​​are not spoken throughout the entire country. Special language laws have been created to define the language borders. Belgium is split into two parts by the language border, which runs roughly east-west. North of that border lies the area where Dutch is the official language, not only as spoken on the street, but also, for example, in education, the judiciary, and municipal services. South of the border, French is spoken, and here too, this language serves as the formal language for education, and so on. Brussels is an exception to this, however, because the Dutch and French languages ​​have the same rights there. And to make matters even more complicated, there is a German-speaking area in eastern Belgium. The Belgian Post came up with the idea, on the occasion of the 150th anniversary of the Kingdom of Belgium, to adorn the existing 6,50 franc postcards with the provincial coats of arms, accompanied by the years 1830-1980, the country name, and the province name. However, in many cases, the provincial borders do not coincide with the language border! The province of Luxembourg (capital Arlon) posed no problem at all: the French language. The same applied to Hainaut (capital Mons) and Namur (with the capital of the same name). But in the province of Brabant, there were distinctly Dutch-speaking areas (Flemish Brabant, capital Leuven), French-speaking areas (Walloon Brabant, capital Wavre), and areas where both languages ​​were spoken. Advice was hard to come by, but a decision was made to satisfy everyone. So a postcard was produced with exclusively Dutch text, exclusively French text, a combination of Dutch and French, and a combination of French and Dutch. For the provinces of Antwerp (with the eponymous capital), West Flanders (capital Bruges), Limburg (capital Hasselt), and East Flanders (capital Ghent), it was also no problem: the Dutch language.     The German-speaking area (Eupen and Malmedy) belonged to the province of Liège (Luik with the capital of the same name). Thus, it was both exclusively French and bilingual: German and French. Why? Because the official language in this area was German, but with French as a second language. In German, the translation of the place name Liège is: Lüttich.    And Brussels? Brussels did not participate in this matter, because this city is not a province. That way, everyone was satisfied. The 10 provinces of Belgium and the Belgian Post, because instead of 10 postcards, they could now sell 13 cards. Price? 84,50 francs for the value of the cards, with a surcharge of 15,50 francs for the entire set: 100 francs. Cash register.