Modern heliographic processes : a manual of instruction in the art of reproducing drawings, engravings, manuscripts, etc., by the action of light : for the use of engineers, architects, draughtsmen, artists, and scientists (1888)
Lietze, Ernst · New York : Van Nostrand · leaf 34
hes are very durable, but those which are manufactured are not of sufficient size. They must be specially made for the purpose, and sent to the enameling works to be glazed. Small sizes, up to 19"X 24" (price, $15.00), are in the market under the name of "Agate Ware Pans." Japanned Sheet Iron Trays… … The frame is then screwed together with wood-screws. Before tightening the screws, some putty should be placed at the joints, and, finally, the wood should be varnished with shellac 10
Photographic reproduction of plans, drawings, etc · Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.