https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14008884Edit ImageSaveSaveEditCropCustom TextVaccinia and variola : a study of their history / by John B. Buist.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 937 x 1200 px | 300 dpiLarge JPEG 1224 x 1568 px | 300 dpiFree DownloadVaccinia and variola : a study of their history / by John B. Buist.More