
Sebold was told to retain two of the microphotographs and to deliver the other three to German operatives in the United States. After completing his training, he was given five microphotographs containing instructions for preparing a code and detailing the type of information he was to transmit to Germany from the United States. Sebold reported to Hamburg, Germany, where he was instructed in such areas as preparing coded messages and microphotographs. While doing so, Sebold secretly told personnel in the American Consulate about his future role as a German agent and expressed his wish to cooperate with the FBI upon his return to America. Gassner, Sebold went to the American Consulate in Cologne, Germany, to obtain a new one. Since Sebold’s passport has been stolen shortly after his first visit from Dr. Renken”-later identified as Major Nickolaus Ritter of the German Secret Service-persuaded Sebold to cooperate with the Reich because he feared reprisals against family members still living in Germany.

He also asked Sebold to return to the U.S. Gassner visited Sebold and interrogated him regarding military planes and equipment in the United States.
