https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14009174Edit ImageSaveSaveEditCropCustom TextPrisoners behind bars opening on to a yard in Moscow being visited by men and women at Easter. Wood engraving, 1890.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 824 px | 300 dpiLarge JPEG 3228 x 2216 px | 300 dpiFree DownloadPrisoners behind bars opening on to a yard in Moscow being visited by men and women at Easter. Wood engraving, 1890.More