9 researched events, 1840 to 1967. Each is dated as its sources date it and carries the references it rests on.
1840
1860
1880
1900
1920
1940
1960
1840s-1901
Edward Anthony's New York photographic business grew into E. & H. T. Anthony & Company, a major supplier and apparatus maker; Scovill & Adams formed the other principal predecessor.
Dated in the sources as “1840s-1901”. Mixed decade and year wording normalized for scaling.
Ansco 1842-1967 · History of Ansco
1901-1907
Anthony and Scovill combined, and the shortened Ansco identity emerged while Binghamton became the principal industrial center.
Ansco 1842-1967 · History of Ansco · Ansco 1906 Product Catalog
1906-1924
Manufacturer catalogs document broad lines of box, folding, plate, and professional cameras with multiple lens and shutter packages.
Ansco 1906 Product Catalog · Ansco 1910 Product Catalog · Ansco Cameras and Supplies, 1924
1928-1939
The American Ansco business combined with Agfa interests as Agfa-Ansco and participated in wider chemical-company reorganizations; product attribution became transatlantic.
Ansco 1842-1967 · Agfa-Ansco 1928-1967 · History of Ansco
1937-1941
Agfa-Ansco expanded Binghamton camera operations into the Emma Street factory during a period of industrial growth.
A Brief History of Ansco
1942-1945
Federal alien-property authority took control of enemy-associated interests; a 1943 vesting order specifically covered IG Farben interests in agreements with Agfa Ansco and Ansco Photoproducts.
Civilian Agency Records RG 131 - Records of the Office of Alien Property · Federal Register, October 28, 1943, pages 14634-14636
1946-1950s
Postwar production resumed under government supervision, including the Binghamton-built Automatic Reflex and a portfolio mixing domestic snapshot cameras with German-derived equipment.
Dated in the sources as “1946-1950s”. Mixed decade and year wording normalized for scaling.
A Brief History of Ansco · Ansco Cameras, catalog B34-111 · Your Ansco Automatic Reflex
1950s-1960
Period literature documents Agfa-derived 35mm and 120 cameras, alternative outside-supplier lenses, and the Anscomark M interchangeable-lens system.
Dated in the sources as “1950s-1960”. Mixed decade and year wording normalized for scaling.
Ansco Cameras, catalog B34-111 · Ansco Miniature Cameras, brochure B52-95 · Ansco Dealer Price List, September 1960
1960-1967
Ansco increasingly used Japanese OEM supply while the corporate identity moved toward GAF; the historical Ansco camera operation narrowed.
Ansco 1842-1967 · Ansco Dealer Price List, September 1960