siderography

Century Dictionary and Cyclopedia

1. n. The art or practice of engraving on steel: particularly applied to the transfer process of Perkins. In this process the design is first engraved on a steel block, which is afterward hardened, and the engraving transferred to a steel roller under heavy pressure, the roller being afterward hardened and used as a die to impress the engraving upon the printing-plate.

Wiktionary

1. n. A 19th-century process of reproducing steel-engraved designs for printing. The design is engraved on a steel block, then hardened and used to transfer a raised-image version to a steel roller under heavy pressure. The roller is then hardened and used as a die to impress duplicate images on printing plates for transferring to paper by the intaglio method.

GNU Webster's 1913

1. n. The art or practice of steel engraving; especially, the process, invented by Perkins, of multiplying facsimiles of an engraved steel plate by first rolling over it, when hardened, a soft steel cylinder, and then rolling the cylinder, when hardened, over a soft steel plate, which thus becomes a facsimile of the original. The process has been superseded by electrotypy.