The modern practice of retouching negatives, as practiced by M. Piquepé and other experts, French, English and American (1882)
Piquepé, P. (Paul), Piquepé, P. (Paul). Traité pratique de la retouche des clichés photographiques. English. Selections · New York : Scovill Manufacturing Company · leaf 15
CHAPTER II. MATERIALS NECESSARY FOR NEGATIVE RETOUCHING. The first tiling wanted is an easel on which to work. This should he a piece of fine ground glass in a frame, on which the negative is placed The bottom of this frame has hinges as well as the top, which retain a cover of wood kept open by… … glasses, and fitting one into the other, stop completely the light round the negative. A little movable rule goes up and down in front of the ground glass, and serves as a rest for the hand of the retoucher. This easel should he put upon a table before a window with a north aspect. As there should…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
