UdG users
1943-06-21 Letter
1940-05-18 Letter
1940-08-01 Letter
1940-10-10 Letter
1940-10-24 Letter
1941-01-19 Letter
1941-06-09 Letter
1941-09-24 Letter
1941-12-17 Letter
1941-12-20 Letter
1942-01-08 Letter
1942-02-28 Letter
1942-04 Letter
1942-04-09 Letter
1942-07-03 Letter
1942-08-09 Letter
1942-09-04 Letter