The words "Powern statt Mauern" in four ovals within four rectangles; advertising an AIDS congress in Leipzig, 1996. Colour lithograph by Wendt & Werner for the Deutsche AIDS-Hilfe e.V., 1996.

Credit

The words "Powern statt Mauern" in four ovals within four rectangles; advertising an AIDS congress in Leipzig, 1996. Colour lithograph by Wendt & Werner for the Deutsche AIDS-Hilfe e.V., 1996. Credit: Wellcome Collection. In copyright