https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/10103424Edit ImageSaveSaveEditCropCustom TextAnalyzing a piece of the film that the History Detectives believed was from the Echo II Project. Original public domain image from NASA. Digitally enhanced by rawpixel.MorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGTIFFSmall JPEG 1200 x 1073 px | 300 dpiLarge JPEG 1914 x 1712 px | 300 dpiTIFF 1914 x 1712 px | 300 dpi | 18.79 MBFree DownloadAnalyzing a piece of the film that the History Detectives believed was from the Echo II Project. Original public domain image from NASA. Digitally enhanced by rawpixel.More