https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/9700570Edit ImageSaveSaveEditCropCustom Text1c Post Office Department card plate proof. Original public domain image from Smithsonian. Digitally enhanced by rawpixel.Original public domain image from SmithsonianMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGTIFFSmall JPEG 961 x 1200 px | 300 dpiLarge JPEG 1429 x 1785 px | 300 dpiTIFF 1429 x 1785 px | 300 dpi | 14.62 MBFree Download1c Post Office Department card plate proof. Original public domain image from Smithsonian. Digitally enhanced by rawpixel.More