https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13966574Edit ImageSaveSaveEditCropCustom TextRouleaux of blood corpuscles. Photomicrograph by Léon Foucault, 1844.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 879 px | 300 dpiLarge JPEG 3089 x 2263 px | 300 dpiFree DownloadRouleaux of blood corpuscles. Photomicrograph by Léon Foucault, 1844.More