Keywords: Wilhelm Röntgen by Nicola Perscheid 1915.jpg Wilhelm Conrad Röntgen http //www gettyimages co uk/detail/news-photo/roentgen-wilhelm-conrad-physicist-d27-03-1845-portrait-news-photo/545348985 1915 published in 1915 by 'Berliner Illustrirte Zeitung' 32/1915 Creator Nicola Perscheid PD-old-70-1923 Nicola Perscheid Wilhelm Conrad Röntgen |