Correspondence and related material, 1965-1968, 1973-1985, 1987-1989, 1991, 1993, 1995, 1999-2000, between Group secretaries Mary Griffiths, Julian Sheppard and Bob Weir and representatives in Sweden, Voroshilovgrad in the former Soviet Union (now Luhansk in the Ukraine), Poland, Portugal, Norway, the Netherlands, Italy, Germany, Finland, Denmark, Belgium, Spain and Switzerland, together with other correspondents, including the Welsh Arts Council (later the Arts Council of Wales), the British Council and the National Museum of Wales, regarding proposed overseas Group exhibitions and their funding; and memoranda by Mary Griffiths. Some folios annotated by Mary Griffiths and Bob Weir.