These classic DDR stamps belong to the celebrated Five-Year Plan series issued in 1953, portraying the socialist ideals of labor and reconstruction.

• The 10 Pfennig green stamp depicts two industrial workers engaged in machine work, symbolizing teamwork and technical progress.

• The 20 Pfennig red stamp shows Stalinallee (Berlin), a monumental socialist boulevard lined with statues and workers — a proud emblem of postwar rebuilding.
  Both designs feature the stylized “5” within a laurel wreath, representing the nation’s ambitious economic plan. Engraved by E. Gruner and K. Wolf, these stamps remain key examples of socialist realist art in philately.