https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13965053Edit ImageSaveSaveEditCropCustom TextPrison, Philadelphia: side view. Coloured engraving by Fenner Sears & Co., 1831, after C. Burton.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 943 px | 300 dpiLarge JPEG 3319 x 2607 px | 300 dpiFree DownloadPrison, Philadelphia: side view. Coloured engraving by Fenner Sears & Co., 1831, after C. Burton.More