https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/8782643Edit ImageSaveSaveEditCropCustom TextDo not spit. Advertising postcard for the National Association for the Prevention of Tuberculosis featuring a color drawing of a nurse wearing a dark blue jacket pointing to the phrase "do not spit".Original public domain image from FlickrMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 771 x 1200 px | 300 dpiLarge JPEG 2100 x 3267 px | 300 dpiFree DownloadDo not spit. Advertising postcard for the National Association for the Prevention of Tuberculosis featuring a color drawing of a nurse wearing a dark blue jacket pointing to the phrase "do not spit".Original public domain image from FlickrMore