[3] In 1908 Jacques relocated to Paris where he founded a photography studio, with Charles following in 1913 to most probably assist him as a photographer.
[1] The Ostra Studio also did commercial photography for erotic books and Yva Richard’s mail-order catalogue La Lingerie Moderne.
The exact number is unknown, but at least three works are known to have been produced and survived: Dressage au Fouet (Raising with the Whip), Sous Les Caresses du Martinet (Under the Caresses of the Martinet), and La Vase Brise (The Broken Vase).
Charles was deported with transport 4 from Pithiviers transit camp to Auschwitz-Birkenau on 25 June 1942.
[3] Biederer was a forerunner of later photographers and artists with similar interests, such as Charles Guyette, John Willie, and Irving Klaw.