https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/11544548Edit ImageSaveSaveEditCropCustom TextPinback button for a national holiday for Martin Luther King, Jr. (1929 - 1968) objecr art. Original public domain image from The Smithsonian Institution. Digitally enhanced by rawpixel.Original public domain image from SmithsonianMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGTIFFSocial Media JPEG 1080 x 1080 px | 300 dpiInstagram Post JPEG 1080 x 1080 px | 300 dpiFacebook Post JPEG 1080 x 1080 px | 300 dpiLarge JPEG 3500 x 3500 px | 300 dpiBest Quality JPEG 10565 x 10565 px | 300 dpiTIFF 10565 x 10565 px | 300 dpi | 638.73 MBFree DownloadPinback button for a national holiday for Martin Luther King, Jr. (1929 - 1968) objecr art. Original public domain image from The Smithsonian Institution. Digitally enhanced by rawpixel.More