https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12241004Edit ImageSaveSaveEditCropCustom TextMake it Yours.Remix, add effects & personalize with your own textCustomizeOr start from these designsInoculation of guinea pig. Experimental farm of Department of Agriculture, Prince George's County, Maryland. Sourced from the Library of Congress.MoreInoculation of guinea pig. Experimental farm of Department of Agriculture, Prince George's County, Maryland. Sourced from the Library of Congress.View public domain image source hereMorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGTIFFSmall JPEG 1200 x 877 px | 300 dpiLarge JPEG 3500 x 2558 px | 300 dpiBest Quality JPEG 4334 x 3168 px | 300 dpiTIFF 4334 x 3168 px | 300 dpi | 26.19 MBFree Download