Here all the raised burr has been burnished away, leaving none of the velvety mezzotint quality.
He claimed to have invented the process of mezzotint, a method of copperplate engraving.
During his exile in Europe, he had become skilled in mezzotint engraving, which he is said to have introduced into England.
mezzotint engraving, which he is said to have introduced into England.
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