Collector 4 stamps - 55 years of printing - Typography

In 1970, the stamp printing plant was set up in Périgueux (24). Since then, a host of specific printing techniques and historic and modern machines have been put to work for philately and secure products. To mark the Imprimerie's 55th anniversary, a series of 4 collectors illustrates the historical and modern machines and 4 printing techniques used at the Boulazac (24) stamp printing works. This collector's set illustrates Heidelberg machines that are almost a century old. Letterpress printing adds embossing and hot foil effects to philatelic products, as well as elements such as cancellations and numbering. Direct relief printing process. Typography refers to the various typesetting and printing processes using raised characters and shapes. It is similar to the technique known as inked pad printing. This printing process is used for limited-run handicrafts, as well as for die-cutting, embossing and hot foil stamping (gold, silver or other shimmering effects, holographic rendering, etc.). Letterpress" machines can also be used to print overprints and cancellations. Stamps - Centenary Original Heidelberg letterpress, prepared for hot foil stamping. - Ink application for cancellations, numbering...

Conception Sylvie Patte et Tanguy Besset (c) La Poste