Belgium
1977 The 50th Anniversary of Workers Gymnastics and Sports Center
1977 The 50th Anniversary of Workers Gymnastics and Sports Center
1977 The 50th Anniversary of the International Federation of Library Associations – IFLA
1977 The 50th Anniversary of the International Federation of Library Associations – IFLA
1977 The 400th Anniversary of the Death of P.P.Rubens
1977 The 400th Anniversary of the Death of P.P.Rubens
1977 The 400th Anniversary of the Death of P.P.Rubens
1977 The 400th Anniversary of the Death of P.P.Rubens