https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13956933Edit ImageSaveSaveEditCropCustom TextWilliam Burke (centre), Dr Alexander Monro III (top left), William Robertson (top right), Thomas Beveridge (lower left), Dr Robert Knox (lower right) Silhouettes, c. 1830.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 882 x 1200 px | 300 dpiLarge JPEG 2526 x 3436 px | 300 dpiFree DownloadWilliam Burke (centre), Dr Alexander Monro III (top left), William Robertson (top right), Thomas Beveridge (lower left), Dr Robert Knox (lower right) Silhouettes, c. 1830.More