These Belgian charity stamps, issued in 1942 during the German occupation, were part of the "Winterhulp / Secours d’Hiver" campaign to raise funds for civilian aid.

• The red 1 Fr + 1 Fr stamp shows Saint Martin sharing his cloak with a beggar, symbolizing charity and compassion.

• The blue 1.75 Fr + 4.25 Fr stamp features Saint Martin on horseback cutting his cloak, echoing the same theme of generosity.
  Both designs highlight the importance of social aid during wartime and were engraved by Jean De Bast. The surtax supported the government-controlled Winter Relief fund, making them historically controversial but philatelically significant.