Marion & Co., major British photographic business of the late 19th and early 20th centuries. It was a branch of the Parisian stationery firm A. Marion and by the late 1850s was dealing in photographic plates, papers, albums, and mounts. In 1863 they moved to Soho Square and in 1885 opened ‘the largest dry plate factory in England’ in Middlesex. From the 1880s they were retailing photographic equipment and materials, many under the ‘Soho’ brand. Marion joined the 1921 combine Amalgamated Photographic Manufacturers Ltd., and in 1928 Apem Ltd. which became part of Ilford Ltd. in the early 1930s.
— Michael Pritchard
