The etcher's handbook : giving an account ot the old processes, and of processes recently discovered ; illustrated by the author (1912)
Hamerton, Philip Gilbert, 1834-1894 · London : C. Roberson · leaf 114
H THE ILLUSTRATIONS. 93 PLATE III. Sketch in One Sitting by the AuthorsPositive Process. In a sketch in one sitting it is not possible to haveany very accurate definition of form, on account of thetime at your disposal, but you must pay attention tothe tonic values of the various parts of your…
Etching
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