France has just issued 1 stamp, which was designed by Serveau, engraved by Piel and printed by the Ateliers de Paris.
The design depicted the French Pavillion at the Exhibition, and was inscribed with "BRUXELLES / 1958" "Pavillon de FRANCE".
The stamps were issued in sheets of 50. The official date of issue was 12 April 1958 in Paris, but on 14 April in other cities in France.
Full stamp sheets:
