Foto: Christos Vittoratos https://commons.wikimedia.org/wiki/File:Behrens-watch.jpg…

Bauhaus Dessau (Bundesarchiv, Bild 183-1983-0804-025 / CC-BY-SA 3.0, CC BY-SA 3.0 DE https://creativecommons.org/licenses/by-sa/3.0/de/deed.en, via Wikimedia Commons)…

(Bundesarchiv, Bild 183-1983-0804-025 / CC-BY-SA 3.0, CC BY-SA 3.0 DE https://creativecommons.org/licenses/by-sa/3.0/de/deed.en, via Wikimedia Commons)…

(Bundesarchiv, Bild 183-1983-0804-025 / CC-BY-SA 3.0, CC BY-SA 3.0 DE https://creativecommons.org/licenses/by-sa/3.0/de/deed.en, via Wikimedia Commons)…

(Bundesarchiv, Bild 183-1983-0804-025 / CC-BY-SA 3.0, CC BY-SA 3.0 DE https://creativecommons.org/licenses/by-sa/3.0/de/deed.en, via Wikimedia Commons)…

(M_H.DE, CC BY 3.0, via Wikimedia Commons)…

(M_H.DE, CC BY-SA 3.0, via Wikimedia Commons)…

(Lelikron, CC BY-SA 3.0, via Wikimedia Commons)…