POLONICA INFORMATION SHEET Adolf Ryszka's sculpture 'Silent Stone' on the Schweinstal sculpture trail Kaiserslautern | Germany
POLONICA INFORMATION SHEET Sculpture by Adolf Ryszka on the campus of the Technical University of Kaiserlautern Kaiserslautern | Germany
POLONICA INFORMATION SHEET Sculpture of Adolf Ryszka in Tsuchiya Sekizai Park in Kasama Kasama | Japan