![]() In contrast to engraving, the fine lines of letterpress are impressed on the surface of the stamp, leaving a debossed surface. Once the final letterpress plates are created, ink is applied to the raised surface and the pressure of the press transfers the ink impression to the paper. The plate used in printing the stamps was an electroplate of these assembled electrotypes. The resulting electrotypes were assembled in the required number and format of the desired sheet of stamps. The original die was then reproduced by stereotyping or electrotyping. This makes the printing areas on the final plate raised, or relief areas.įor less-detailed stamps of the 19th century, the area on the die not used as a printing surface was cut away, leaving the surface area raised. In this way, the transfer roll has a recessed stamp design, rather than one done in relief. The design is transferred to another surface before being transferred to the transfer roll. In this instance, however, an additional step is needed. ![]() Letterpress includes all printing where the design is above the surface area, whether it is wood, metal or, in some instances, hardened rubber or polymer plastic.įor most letterpress-printed stamps, the engraved master is made in much the same manner as for engraved stamps. This is comparable to the type of printing seen by inking and using an ordinary rubber stamp. Rather than having recessed areas trap the ink and deposit it on paper, only the raised areas of the design are inked. The current term for this form of printing, however, is “letterpress.”Īs it relates to the production of postage stamps, letterpress printing is the reverse of engraving. Therefore, appropriate Scott listings in this catalogue refer to typographed stamps. (Letterpress, Surface Printing, Flexography, Dry Offset, High Etch)Īlthough the word “Typography” is obsolete as a term describing a printing method, it was the accepted term throughout the first century of postage stamps. Printing Processes as by Scott Publishing Co. ![]() Ok here is the official information from Scott's catalog.
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