Obra: Projeto de palco mecânico, 1925–1926
Autor: Joost Schmidt
Data: 1925date QS:P571,+1925-00-00T00:00:00Z/9
Licença: Public domain
Fonte: https://commons.wikimedia.org/wiki/File:Joost-schmidt-mechanical-stage-design-1925-1926-ink-and-tempera-on-paper-64-x-44-cm1.jpg