ETCHING NEEDLE (n.)
SALMON, William, Polygraphice, Or The Art of Drawing, Engraving, Etching, Limning, Painting, Washing, Varnishing, Colouring and Dying. In three Books. I. Shews the Drawing of Men, and other Animal Creatures, Landskips, Countries, and Figures of Various Forms. II. The way of Engraving, Etching and Limning, with all their Requisits and Ornaments. III. The way of Painting, Washing, Varnishing, Colouring, and Dying, according to the Method of the best Authors now Extant. Exemplified in the Painting of the Antients, Washing of Maps, Globes, or Pictures ; Dying of Cloth, Silks, Bones, Wood, Glass, Stones and Metals : together with the way of Varnishing thereof according to any Purpose or Intent. The Like never yet Extant. By W. S. a Lover of Art, London, E.T. and R.H., 1672.1 quotations
. ETCHING is an Artificial Engraving of Brass or Copper Plates with Aqua fortis.
II. The Instruments of Etching (besides the Plate) are these nine. I. Hard Varnish. 2. Soft Varnish. 3. Prepared Oyl. 4. Aqua fortis. 5. Needles. 6. Oyl stone. 7. Brush-pensil. 8. Burnisher. 9. The Frame and Trough. [...] VIII. To make the Etching Needles.
Chose Needles of several sizes, such as will break without bending, and of a fine grain ; then take good round sticks of firm wood (not apt to split) about six inches long, and as thick as a large Goose quill, at the ends of which fix your Needles, so that they may stand out of the sticks about a quarter of an inch or something more.