Issued in 1979 by Deutsche Bundespost Berlin, this 60 + 30 Pfennig semi-postal stamp belongs to the Welfare (“Für die Wohlfahrtspflege”) series featuring botanical subjects. It depicts the Horse Chestnut (Aesculus hippocastanum), showing its distinctive fan-shaped leaves, spiky green seed pods, and clusters of white-pink flowers. The additional 30 Pfennig surtax supported welfare programs in West Berlin. Designed in a stylized graphic art style, the stamp beautifully combines botanical detail with elegant 1970s design sensibilities.