https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14006271Edit ImageSaveSaveEditCropCustom TextMa Robert, D. Livingstone's steam boat on which he explored the River Zambezi. Lithograph by T. Picken after S. Walters, 1858.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 851 px | 300 dpiLarge JPEG 3216 x 2280 px | 300 dpiFree DownloadMa Robert, D. Livingstone's steam boat on which he explored the River Zambezi. Lithograph by T. Picken after S. Walters, 1858.More