This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
CzechChessComposers. Tschechische Schachkomponisten Antonn Knig Jan Drtina Josef Paclt Dr Antonn Kvala Karel Makovsk Karel Bohu Kober Dr Jan Dobrusk Dr Jan Pilnek Ji Chocholou Karel Kondelk Frantiek Mouka Dr Eduard Mazel Josef Pospil Jan Kotr Karel Peter Traxler Czech chess composers Antonn Knig Jan Drtina Josef Paclt Dr Antonn Kvala