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 41
MATERIALS, TOOLS, ETC. 27 constructed of brass, and one with a heavy foot — one which has been loaded up with lead — should be selected. By these handy appliances the eye-glass can be adjusted to any height, there being a movable thumbscrew provided for the purpose of raising or lowering the arm,… … ever, an eye-shade is decided upon, let it be of green silk of a dull texture and tint, and with some half-dozen small holes pierced through the portion nearest to the forehead, as these will much facilitate the escape of the hot air. For myself, I do not recommend the adoption of eye-shades, as…
Wood-engraving
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
