https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13952072Edit ImageSaveSaveEditCropCustom TextEquation : labour light, clothes white = Sunlight / Lever Brothers Limited.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGSmall JPEG 813 x 1200 px | 300 dpiLarge JPEG 2371 x 3500 px | 300 dpiBest Quality JPEG 2572 x 3796 px | 300 dpiFree DownloadEquation : labour light, clothes white = Sunlight / Lever Brothers Limited.More