UdG users
1942-08-13 Letter
1942-12-17 Letter
1942-12-21 Letter
1943-04-24 Letter
1943-05-10 Letter
1943-05-24 Letter
1943-05-26 Letter
1943-05-29 Letter
1943-06-10 Letter
1943-07-14 Letter
1943-07-24 Letter
1943-08-25 Letter
1943-09-09 Letter
1943-09-11 Letter
1943-09-20 Letter
1943-09-26 Letter
1943-10-14 Letter
1943-11-07 Letter
1943-11-08 Letter
1943-12-19 Letter
1944-03-28 Letter
1945-04-03 Letter