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ภาพถ่ายถูกตัด, ปรับขนาดและปรับปรุงให้ดีที่สุดเป็น WebP, แสดงในโทนสีเดียว

• Eduard von Winterstein — Friedrich Gahlbeck; This image was provided to Wikimedia Commons by the German Federal Archive (Deutsches Bundesarchiv) as part of a cooperation project . The German Federal Archive guarantees an authentic representation only using the originals (negative and/or positive), resp. the digitalization of the originals as provided by the Digital Image Archive . · CC BY-SA 3.0 de
• Werner Krauss — George Grantham Bain Collection (Library of Congress); This image is available from the United States Library of Congress 's Prints and Photographs division under the digital ID ggbain.37082 . This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing . · สาธารณสมบัติ
• Conrad Veidt — MGM-photo by Clarence Bull.; eBay front back · สาธารณสมบัติ