Ducal printing house
Ducal printing stands for
- Ducal printing works (Barth) , former printing works in Barth, Western Pomerania
- Ducal Printing Works (Żagań) , former printing works in Sagan (Żagań), Silesia
- Ducal printing works (Zweibrücken) , former printing works in Zweibrücken, Rhineland-Palatinate