UdG users
1956-07-31 Letter
1952-03-20 Letter
1951-04-22 Letter
1956-07-21 Letter
1956-03-18 Letter
1963-08-10 Letter
1964-12-13 Letter
1962-10-21 Letter
1963-10-23 Letter
1959-01-02 Letter
1963-05-10 Letter
1965-02-12 Letter
1950-04-06 Letter
s.d. Letter
1956-04-22 Letter
1969-03-08 Letter
1955-11-16 Letter
1956-01-23 Letter
1955-03-19 Letter
1953-12-23 Letter
1963-07 Letter
1957-06-04 Letter
1969-01-09 Letter
1949-02-10 Letter