Halftone Sets, from 22\- to 401-Three-Colour Sets, from 25/- to 45\ = - THE BOOKLET OF INSTRUCTIONS (New Edition), contains tableswhich show at a glance the correct stop for a given screen distance, or thecorrect screen distance for a given stop. Penrose & Co., iog, Farrmgdon Road, London, E.C,…
Color photography · Color printing
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.