https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13979509Edit ImageSaveSaveEditCropCustom TextNanking, Kiangsu province, China: three men examining a gun at the arsenal. Photograph by John Thomson, 1871.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 968 px | 300 dpiLarge JPEG 3393 x 2737 px | 300 dpiFree DownloadNanking, Kiangsu province, China: three men examining a gun at the arsenal. Photograph by John Thomson, 1871.More