https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13996047Edit ImageSaveSaveEditCropCustom TextShip fumigation using hydrogen cyanide: the outside of the ship showing portholes. Photograph by P. G. Stock, 1900/1920.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 842 x 1200 px | 300 dpiLarge JPEG 1500 x 2139 px | 300 dpiFree DownloadShip fumigation using hydrogen cyanide: the outside of the ship showing portholes. Photograph by P. G. Stock, 1900/1920.More