Three-colour photography: three-colour printing and the production of photographic pigment pictures in natural colours (1904)
Hübl, Arthur, Freiherr von, 1853-1932, Klein, Henry Oscar · London, A. W. Penrose & co. · leaf 182
Penrose's Prisms and Mirrors FOR MAKING REVERSED NEGATIVES. … PRISM BOX. MIRROR BOX. IVlllvIvvJlvO are optically correct in planeness, have a thick deposit of silver, and a brilliant polish. are of annealed colourless glass, of correct angle and perfect optical planeness, with highly- polished surfaces, and brilliant silvering. They are accur- ately fitted in…
Color photography -- Three-color process
Internet Archive · University of California Libraries · Public domain (published before 1931). Free to use for anything.
