https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13968441Edit ImageSaveSaveEditCropCustom TextPhiladelphia International Exposition, 1876: American Civil War Army of the Potomac train carriage: the hospital car: a model. Photograph, 1876.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 1017 px | 300 dpiLarge JPEG 3005 x 2547 px | 300 dpiFree DownloadPhiladelphia International Exposition, 1876: American Civil War Army of the Potomac train carriage: the hospital car: a model. Photograph, 1876.More