A practical manual of wood engraving : with a brief account of the history of the art (1886)
Brown, William Norman · London : C. Lockwood and Co. · leaf 53
CHAPTER III. OUTLINING AND TINTING. … operations by the cutting of parallel, straight, and curved lines in all directions, in order to acquire that freedom which is so essential in a good workman. Of course, the pupil will commence with the cutting of lines very far apart, gradually bringing them closer toge- ther as he acquires…
Wood-engraving
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
