https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/8734745Edit ImageSaveSaveEditCropCustom TextMake it Yours.Remix, add effects & personalize with your own textCustomizeOr start from these designsCivil Defense Air Raid Drill Highland View School 1953 Oak RidgeMoreCivil Defense Air Raid Drill Highland View School 1953 Oak Ridge8934-1 DOE photo Ed Westcott 4-9-1953 Oak Ridge Tennessee. Original public domain image from FlickrMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 934 px | 300 dpiLarge JPEG 3500 x 2724 px | 300 dpiBest Quality JPEG 9148 x 7121 px | 300 dpiFree Download