One of the places I found the Declaration was in the JW 1934 Yearbook. I found it on line.
The Yearbook back then gave detailed breakdowns of activities country by country, when it could spare ink from ranting about Armageddon, Satan, his organization, popes, Jesuits, etc. On page 127 there begins a report about activity in Germany. And on page 131, after some introduction, appears the text to the Declaration of Facts, continuing to page 143. After entry of the Declaration of Facts with all its condemnation of the US government and identifying its ruling oligarchies, the 1934 Yearbook notes:
"Since then negotiations have been in progress between the Society’s representative, the Department of
State at Washington, and the German Government in Berlin. The result is that early in October this year
the German Government entered an order for the release of all of the Society’s property and turned it
back into possession of our representatives; but the order forbidding the activities of the Society is still
in force, and this is a violation of the treaty between the two governments regarding religious liberty, and
negotiations are still in progress to get these restrictions removed.
"Many of the brethren throughout Germany have been arrested and thrown into concentration camps, and they have been in great difficulties We are certain, however, that the Lord has permitted this for a purpose, and Jehovah’s witnesses in Germany are not discouraged. They well know that they are engaged in the work of Jehovah and whatsoever is his will will come to pass. Whether the work is done in Germany or not we are not able to say. We will wait on the Lord, watch for his leadings, and act accordingly.
"The zeal and earnestness of Jehovah’s witnesses throughout Germany during the time that they were permitted to engage actively in the work has shown a marked increase, and the results show that they did a splendid service. This report for Germany embraces about six months of the year.
"The reports received at the Magdeburg office up to the time that the work was suspended, the mail seized and all work stopped, show the distribution of books and booklets m Germany as follows: bound books, 490,333, and booklets, 4,661,583. Over the same period of time this was a decided increase over last year. During that brief period of witnessing testimonies were given to the number of 10,735,571, as against 13, 788,796 for the whole year 1932. …"