Morocco (Southern Zone being a French colony at that time) has issued just a set of three stamps with an identical design but with three different values. The stamp was designed and engraved by Fenneteaux and printed by Atelier de Timbre Poste du Boulevard Brune in Paris.

The stamp depicted the Moroccon Pavillon at Brussels Expo in Moorish style, flag flying in the court yard; inscribed in Arabic at top and French at bottom "EXPOSITION UNIVERSELLE et INTERNATIONALE de BRUXELLES / 1958". The emblem of the Exhibition is put a the left top corner.

The three values were 15F (green-blue), 25F (carmine) and 30F (indigo) all in Frenchs Francs at that time instead of Spanish Pesetas. The Spanish Pesetas and postage stamps in Spanish currency were withdrawn from the Northern (formerly Spanish) zone of Morocco and replaced by issues expressed in francs, just prior to the issuance of the Brussels Exhibition stamps; hence the set was issued in franc values only.

30 stamps were printed per sheet: