This 20-Pfennig commemorative stamp was issued by Deutsche Bundespost in 1970 to celebrate the 83rd Deutscher Katholikentag (German Catholic Day) held in Trier. The design features a modern, geometric motif of colored dots forming a white cross at the center, symbolizing unity and faith through modern graphic abstraction.

The use of red, violet, and light blue circles on a deep teal background represents diversity within the Christian community, converging around the central cross of faith. The clean typography and symmetrical layout reflect post-war German design’s clarity and optimism.