https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13981375Edit ImageSaveSaveEditCropCustom TextNankow pass, Pechili province, China. Photograph, 1981, from a negative by John Thomson, 1871.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 573 px | 300 dpiLarge JPEG 3500 x 1670 px | 300 dpiBest Quality JPEG 3825 x 1825 px | 300 dpiFree DownloadNankow pass, Pechili province, China. Photograph, 1981, from a negative by John Thomson, 1871.More