Lithography in Postage Stamp Printing
Lithography is a printing technique where an image is drawn on a flat, smooth surface (traditionally a limestone plate) using a greasy medium. The plate is then chemically treated so…
October 2024
What Is Photogravure In The Context Of Philately?
Photogravure stands as one of the most significant printing methods in philatelic history. This detailed printing process, which utilises microscopic cells etched into copper, has been instrumental in producing high-quality…