ISDT 1913 – Carlisle
ISDT 1914 – Grenoble – Abandoned WWI
ISDT 1920 – Grenoble
ISDT 1921 – Switzerland
ISDT 1922 – Switzerland – Info Needed
ISDT 1923 – Sweden & Norway
ISDT 1924 – Chaudfontaine – Info Needed
ISDT 1925 – Southampton
ISDT 1926 – Buxton
ISDT 1927 – Ambleside
ISDT 1928 – Harrogate
ISDT 1929 – Mid Europe – Info Needed
ISDT 1930 – Grenoble – Info Needed
ISDT 1931 – Merano – Info Needed
ISDT 1932 – Merano
ISDT 1933 – Llandrindod Wells
ISDT 1934 – Partenkirchen – Info Needed
ISDT 1935 – Obersdörf
ISDT 1936 – Freudenstadt – Info Needed
ISDT 1937 – Llandrindod Wells
ISDT 1938 – Llandrindod Wells
ISDT 1939 – Salzburg – Part Abandoned WWII
ISDT 1947 – Klin
ISDT 1948 – San Remo
ISDT 1949 – Llandrindod Wells
ISDT 1950 – Llandrindod Wells
ISDT 1951 – San Remo – Info Needed
ISDT 1952 – Bad Aussee
ISDT 1953 – Gottwaldov
ISDT 1954 – Llandrindod Wells
ISDT 1955 – Gottwaldov – Info Needed
ISDT 1956 – Garmisch-Partenkirchen
ISDT 1957 – Spindleruv Mlyn – Info Needed
ISDT 1958 – Garmisch-Partenkirchen
ISDT 1959 – Gottwaldov
ISDT 1960 – Bad Aussee
ISDT 1961 – Llandrindod Wells
ISDT 1962 – Garmisch-Partenkirchen
ISDT 1963 – Jilmnice
ISDT 1964 – Erfurt
ISDT 1965 – Douglas
ISDT 1966 – Villingsberg
ISDT 1967 – Zakopane
ISDT 1968 – San Pellegrino
ISDT 1969 – Garmisch Partenkirchen
ISDT 1970 – San Lorenzo de El Escorial
ISDT 1971 – Douglas
ISDT 1972 – Spindleruv Mlyn
ISDT 1973 – Dalton
ISDT 1974 – Camarino
ISDT 1975 – Douglas
ISDT 1976 – Zeltweg
ISDT 1977 – Povazska Bystrica
ISDT 1978 – High Chaparral
ISDT 1979 – Lager Stegskopf
ISDT 1980 – Brioude