Soon his portraits were used by news agencies, and in 1910 Manuel's studio began providing a commercial service to news agencies for photographs known as "l'Agence universelle de reportage Henri Manuel".
[2] The studio became the largest photographic studio in Paris and a leading centre where young aspiring photographers such as Thérèse Bonney might go to work.
[3] In 1925, the brothers moved their business to 27 rue du Faubourg Montmartre, where they expanded their business into fashion photography for the likes of Chanel, Patou, Poiret and Lanvin.
[2] The studio was shut down during the Second World War, and most of the photographic plates were destroyed.
Some 500 survived, and ultimately passed into possession of the Médiathèque de l'architecture et du patrimoine.