On the process of etching, or engraving, by means of voltaic electricity
James H. Pring · Abstracts of the Papers Communicated to the Royal Society of London · 1851
Abstract The author, referring to an account which he gave of his method of etching on hardened steel plates, or other polished metallic surfaces, by means of electricity, in the Philosophical Magazine for November 1843, offers some additional observations relating to the theory of the process, and states some further practical remarks in its application to engraving. A specimen of a steel plate, and of a razor, on which ornamental designs were engraved by this method, were laid before the Society, in illustration.