1. 10 Pfennig – Galerieholländermühle Dabel
   Depicts the gallery-type Dutch windmill of Dabel, showcasing classic German rural milling architecture.

2. 20 Pfennig – Turmholländermühle Pahrenz
   Features a tower-type Dutch windmill from Pahrenz, a well-preserved example of 19th-century engineering.

3. 25 Pfennig – Turmholländermühle Dresden-Gohlis
   Illustrates the Gohlis windmill near Dresden, a cultural landmark noted for its distinctive conical tower.

4. 70 Pfennig – Bockwindmühle Bärstadt
   Portrays the post-type windmill of Bärstadt, a traditional wooden structure representing early mechanical innovation.

Issued in 1981, this DDR commemorative set honors Germany’s historic windmills as technische Denkmale (technical monuments). Each stamp highlights a unique regional windmill type—post, tower, and gallery—representing centuries of engineering and craftsmanship. The series celebrates East Germany’s dedication to preserving its industrial and rural heritage through vivid, modernist designs and clean typography.