https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13999420Edit ImageSaveSaveEditCropCustom TextRacecourse, Happy Valley, Hong Kong. Photograph by John Thomson, 1868/1871.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 1003 px | 300 dpiLarge JPEG 3334 x 2787 px | 300 dpiFree DownloadRacecourse, Happy Valley, Hong Kong. Photograph by John Thomson, 1868/1871.More