A Belgian First Day Cover (FDC) issued by the Belgian National Work for the fight against tuberculosis with two paintings by René Magritte. The artworks are 'L'homme au chapeau melon qui se regarde dans un globe' ('The Man with the Bowler Hat Who Contemplates a Globe') and 'La leçon de dessin' ('The Drawing Lesson'). The envelope is in good condition and is sold to collectors.