<a href="//commons.wikimedia.org/wiki/Erich_Honecker" title="Erich Honecker">Erich Honeckers</a> admission card to the Conference for Security and Cooperation Meeting in Helsinki, 1975. <a href="//commons.wikimedia.org/wiki/Deutsches_Historisches_Museum" title="Deutsches Historisches Museum">Deutsches Historisches Museum</a>, Berlin
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