Embassy cyphers (telegrams), 17.10.1938-15.06.1940 A. (Arabic numerals) – Documents of Polish ministries, diplomatic posts and official institutions, 1919 – 1991 A.44 The Polish Embassy to the Holy See
Embassy cyphers (telegrams), 15.06.1940-11.06.1942 A. (Arabic numerals) – Documents of Polish ministries, diplomatic posts and official institutions, 1919 – 1991 A.44 The Polish Embassy to the Holy See
Embassy cyphers (telegrams),20.06.1940-14.09.1943 A. (Arabic numerals) – Documents of Polish ministries, diplomatic posts and official institutions, 1919 – 1991 A.44 The Polish Embassy to the Holy See