Issued in 1975 by Deutsche Bundespost Berlin, this 50-pfennig commemorative stamp celebrates the European Architectural Heritage Year. It features a detailed architectural drawing of preserved 19th-century residential facades in Berlin-Kreuzberg, symbolizing the effort to protect and restore Europe’s historical urban environments. The minimalist design combines shades of teal and taupe, emphasizing architectural lines and proportions. This issue highlights Berlin’s commitment to urban conservation amid post-war redevelopment.