https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13977347Edit ImageSaveSaveEditCropCustom TextPaul Ehrlich: his Nobel Prize citation, 29 October 1908. Colour photograph.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 802 px | 300 dpiLarge JPEG 3306 x 2210 px | 300 dpiFree DownloadPaul Ehrlich: his Nobel Prize citation, 29 October 1908. Colour photograph.More