electrotype

(redirected from electrotypes)
Also found in: Dictionary.

electrotype

[i′lek·trə‚tīp]
(graphic arts)
A duplicate printing surface prepared by making a mold of the type page or halftone plate, then suspending this mold in a bath of copper sulfate and sulfuric acid where, by electrolytic action, a thin shell of copper is deposited on it, and finally pouring molten type metal into this shell to strengthen it for use on the press.
References in periodicals archive ?
The faithfulness of the electrotypes to the originals, at least so far as one can tell from prints made by Blake, is astonishing.
APPENDIX Absurd Increases in Commercial Value PURCHASE VALUATION TITLE PRICE (Canadian $) Songs electrotypes (1861) Gift $28,000 Dante (1968) Gift $29,500 Marriage of Heaven and Hell (M) (1790?
Although the English silver is well known (for example, from the electrotypes in the Whiteley Silver Galleries in the Victoria and Albert Museum), and some was shown at Sotheby's in London in 1991, this exhibition and its handsome catalogue incorporate new research.
Moreover, he made electrotype casts of all the cameos and sealing-wax impressions of the intaglios--a collection now in the Beazley Archive, having passed into the possession of Sir John Beazley (who was far more than simply a Greek-vase expert).