https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14012580Edit ImageSaveSaveEditCropCustom TextNigerian porters carrying gun parts across the Benue river in a British expedition to suppress slavery. Wood engraving after Morgan, 1894.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 935 px | 300 dpiLarge JPEG 3000 x 2337 px | 300 dpiFree DownloadNigerian porters carrying gun parts across the Benue river in a British expedition to suppress slavery. Wood engraving after Morgan, 1894.More