Washington, D.C. Perforating, examining and counting postage stamps at the United States Bureau of Engraving and Printing.… https://www.rawpixel.com/image/12268063/photo-image-person-living-room-public-domainFree Image from public domain licenseWashington, D.C. Siderographer transferring stamp image from the die to the plate at the United States Bureau of Engraving… https://www.rawpixel.com/image/12267788/photo-image-person-technology-public-domainFree Image from public domain licenseWashington, D.C. Postage stamp coiling machine at the United States Bureau of Engraving and Printing. Sourced from the… https://www.rawpixel.com/image/12267783/photo-image-paper-person-artFree Image from public domain licenseWashington, D.C. Stamp coiling machine at the United States Bureau of Engraving and Printing. Sourced from the Library of… https://www.rawpixel.com/image/12267787/photo-image-paper-person-artFree Image from public domain license