https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12338592Edit ImageSaveSaveEditCropCustom TextFrederick, Maryland. Walter Spangenberg, a student at Woodrow Wilson High School, and "Greaseball," a mascot at the Stevens Airfield. 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 1161 x 1200 px | 300 dpiLarge JPEG 3387 x 3500 px | 300 dpiBest Quality JPEG 5063 x 5232 px | 300 dpiTIFF 5063 x 5232 px | 300 dpi | 50.53 MBFree DownloadFrederick, Maryland. Walter Spangenberg, a student at Woodrow Wilson High School, and "Greaseball," a mascot at the Stevens Airfield. Sourced from the Library of Congress.More