https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13963535Edit ImageSaveSaveEditCropCustom TextPhiladelphia International Exposition, 1876: group portrait (of military medical men ). Photograph, 1876.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 938 px | 300 dpiLarge JPEG 3071 x 2401 px | 300 dpiFree DownloadPhiladelphia International Exposition, 1876: group portrait (of military medical men ). Photograph, 1876.More