1 : 1928 , Belgium
2 : June 1927 , Belgium
3 : 1931 , Belgium
4 : October 1938 , Belgium
5 : April 1941 , Belgium
6 : 1942 , Belgium
7 : 1941 , Belgium
8 : 1943 or 1944 , Belgium
9 : 1943 , Belgium
10 : 1943 , Belgium
11 : 1946 , Belgium
12 : 1946 , Belgium
13 : 1945 , Belgium
14 : 1948 , Belgium
15 : 1949 , Belgium
16 : 1949 , Belgium
17 : 1949 , Belgium
18 : 1955 , Belgium
19 : 1953 , Belgium
20 : May 18 , 1955 , Paris , France
21 : May 5 , 1954 , Paris , France
22 : 1955 , Belgium
23 : 1963 , Belgium