https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12267835Edit ImageSaveSaveEditCropCustom TextTwo-way 400-subject postage stamp perforating machine at the United States Bureau of Engraving and Printing. 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 910 px | 300 dpiLarge JPEG 3500 x 2653 px | 300 dpiBest Quality JPEG 13568 x 10285 px | 300 dpiTIFF 13568 x 10285 px | 300 dpi | 266.29 MBFree DownloadTwo-way 400-subject postage stamp perforating machine at the United States Bureau of Engraving and Printing. Sourced from the Library of Congress.More