1951-12-17: Anti-tuberculosis Fund 1951

1951-09-22: Queen Elisabeth-fund

1951-09-01: Allegory - 25th anniversary of the Belgian railway company

1951-09-01: Allegory - 25th anniversary of the Belgian railway company

1951-08-20: Statue Breendonk

1951-07-02: Parcel Post - A day at the post

1951-07-02: Balloon post "BELGICA"

1951-07-02: Parcel Post - Handling a Postal Parcel

1951-07-01: Number on Heraldic Lion - Precanceled

1951-07-01: 50th Anniversary of the Belgian Royal Aero-Club

1951-06-11: King Leopold III - type "Open collar"

1951-04-21: European Athletics Championships

1951-03-27: UNESCO

1951-02-15: King Leopold III - type "Poortman"

1951-02-15: Number on Heraldic Lion

1951-01-01: Small Coat of Arms - Precanceled