1938.07.02_Blocked balance of Permutit A.G.

1940.01.03_Dietrich to Frederick G. Danning (Gunther Dannenbaum). Electrical machinery business

1940.09.17_Frederick G. Danning (Gunther Dannenbaum) to Dietrich. Export businesses

1940.09.99_Dietrich to Frederick G. Danning (Gunther Dannenbaum). Business collaboration proposal

1940.10.03_Dietrich to Frederick G. Danning (Gunther Dannenbaum). Food business