Three-colour halftone posters & prints

Woolworth Building June Night Rachael Robinson Elmer

Commercial Application of Three Colour Process John Swain & Son

Joseph Marie Jacquard, showing his loom to Lazare Carnot, Lyon, France, 1801 (1901) Unknown

William Somerset Maugham, British author of novels, plays and short stories, 1927 Anonymous

Alfred Russell Wallace, Welsh naturalist, c1895 Unknown

Henri Moissan, French chemist, c1900 Unknown

Abel Pifre's solar-powered printing press, c1894 ([c1927) Unknown

Cameramen under fire while filming in the First Balkan War, 1912 Unknown

William Henry Bragg, English physicist, early 20th century Unknown

James Jeans, English mathematician and physicist Anonymous