GOVERNMENT OF THE GERMAN DEMOCRATIC REPUBLIC Ministry for State Security ATTESTATION On the existence of a tunnel from West Berlin into the Capital of the German Democratic Republic. In the course of a cellar check by members of the National People’s Army on 18.02.1963 at 45 Brunnen Street in Berlin Mitte it was established that there was a hole in the floor of the cellar that gave rise to the supposition that a tunnel was to be found here. A widening of the hole and subsequent examination gave rise to the confirmation that in this building at 45 Brunnen Street was the end of a tunnel built
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