https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13979510Edit ImageSaveSaveEditCropCustom TextShip fumigation using hydrogen cyanide: operators at work with metal funnels on board the ship. 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 813 x 1200 px | 300 dpiLarge JPEG 1452 x 2144 px | 300 dpiFree DownloadShip fumigation using hydrogen cyanide: operators at work with metal funnels on board the ship. Photograph by P. G. Stock, 1900/1920.More