https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13964315Edit ImageSaveSaveEditCropCustom TextCharles Joseph Singer and Dorothea Waley Singer. Photograph.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGSmall JPEG 1200 x 856 px | 300 dpiLarge JPEG 3129 x 2231 px | 300 dpiFree DownloadCharles Joseph Singer and Dorothea Waley Singer. Photograph.More