تعريف steel engraving في الإنجليزية الإنجليزية القاموس.
A print from an engraved steel plate Steel engravings are oftentimes recognized by a stiffness found in their paper, although the engraved lines themselves exhibit a very fine quality Steel engraving developed in the late 1700s and early 1800s It was in 1819 that steel engraving gained commercial use when Charles Heath and Jacob Perkins worked together to develop currencies difficult to forgerize Copper plates were found to be made more durable by facing them with steel Steel engraving remained a very important method of printing until around 1880
An engraving on a steel plate, after prepared first with etched lines in the regular pattern of an engraving