Collection G. Even

Collection d'appareils photo, accessoires et gadgets

1834: création
1867: George Houghton and Son
1892: George Houghton and Sons
1904: Houghtons Ltd.
1926: Houghton-Butcher Ltd.
1930: Ensign Ltd. (branche commerciale)
1940: Houghtons (Holborn) Ltd.
1945: Barnet-Ensign
1948: Barnet Ensign Ross
1954: Ross-Ensign
1961: fin