Il s'agit d'une chambre de vulgarisation telle qu'on les fabriquait au début du XX^ème siècle. Légère, en bois simple recouvert de simili-cuir (poignée en cuir cependant), elle possède un soufflet en tissu renforcé. Le manque de sophistication apparent n'empêche toutefois pas un double tirage par avancement complet du chariot dans les rails en bois de l'abattant.

L'obturateur est un The Newest créé par Gustave Grégoire vers 1909-1910 (mais breveté seulement en 1911). Il comporte l'Instantané, la pose en un temps (l'obturateur ne se referme que lorsqu'on relâche le déclencheur) et la pose en deux temps (premier appui sur le déclencheur pour ouvrier l'obturateur, second appui pour refermer l'obturateur). Sur cet exemplaire, Il ne manque que la poire dont on aperçoit un résidu en bas de l'obturateur pneumatique.

Le réglage du diaphragme se fait théoriquement sur une des trois positions notées 1, 2 ou 3 sur le bandeau noir sous l'objectif. Dans la réalité, le réglage de l'ouverture se fait en continu. 1 est l'ouverture de diaphragme la plus importante, mais il est possible de régler en deçà de cette valeur. De même, il est possible de régler le diaphragme au delà de 3.

Pour le décentrement horizontal, il faut d'abord débloquer la petite manette qui se trouve sur le chariot supportant le bloc objectif/obturateur, puis déplacer latéralement la partie métallique de celui-ci. Pour le décentrement vertical, le fait de dévisser l'écrou au sommet de la platine porte-objectif permet à celle-ci de pouvoir coulisser le long des deux lames verticales.

Historical information based on the bibliographical and genealogical research of Étienne Gérard – (His publications are distributed by the Club Niépce Lumière)

On September 12, 1838, the Hospice de la Charité in Lyon received an abandoned child by the name of Jousset. He was named Pierre Antoine. (1838, a pivotal year for photography...) Married to Marie Louise Lasser (c.1845-1913), he had a son in 1868, Gustave Pierre (1868-1956). He was a tanner in Paris, perhaps located near the Bièvres... A second son, Émile Albert (1870-?), became an architect and built the Dumont factory (the cabinetmaker for Bellieni) on Rue Bobillot in 1899, and another son, Lucien (1873-1905), became an optician. (The last two children, Alfred (1874-1920) and Célestine (1877-?), left no traces.) Pierre Antoine Jousset passed away in Champigny-sur-Marne on August 25, 1900, at his residence at 18 Avenue Bel-Air, where he was employed by the City of Paris.

Gustave Pierre Jousset was born on July 23, 1868, at 25 Rue Pernet in the 15th arrondissement of Paris, at his parents' home. In 1899, he was located at 20 Place d'Italie as a sales representative, along with his brother Émile. Émile then obtained the contract to build the new factory for Auguste Dumont (1863-1909) at 20 and 22 Rue Bobillot. It is possible that this contract brought Gustave and Auguste together. In 1901, Gustave lived at 30 Rue Bobillot, just a few houses away from the Dumont factory, and in 1902, he became the authorized representative for A. Dumont & Co.
On January 13, 1902, Gustave married Marthe Brochot, originally from Villiers-sur-Thonon, with Auguste Dumont as his witness.
Émile Robert Georges Jousset was born in Yonne on October 9, 1902, and would become a doctor. André Louis Jousset was born on May 13, 1904, and would work with his father.

After his marriage, Gustave, who was an authorized representative for his friend Auguste Dumont, became a sales agent. What were his connections with the manufacturer Gaëtan Mattioli (1855-1933)?
Did Mattioli manufacture shutters for Dumont? In any case, the similarities between the 'Gamine' range by Mattioli and the 'Indiscret Stéréo' range by Dumont demonstrate a relationship between the two companies, and it is likely that Gustave Jousset was the intermediary.
In 1907, Mattioli, aged 52, wished to find a successor. On January 1, 1908, he sold his entire business located at 7 Rue Broca to Gustave Jousset, mentoring him during the first year. Thus, G. Mattioli's shutters became G. Jousset's shutters. On May 17, 1909, while on vacation in Montgeron, Auguste Dumont passed away suddenly at the age of 46. Gustave Jousset then resumed the production of the Indiscrets folding camera range. In 1910, the buildings of the former Dumont establishment were taken over by the 'Fouue' partnership. In the early 1930s, the Chotard Company would move in. Until the eve of World War I, Gustave Jousset continued the production initiated by Mattioli and Dumont and expanded his range with the production of 'Guerry' type shutters.
After World War I, Gustave Jousset resumed his activities. In 1922, he partnered with the Hébert Company to create the Jousset & Hébert Company. The partnership was dissolved in 1924, and Jousset specialized in manufacturing folding cameras (6.5 x 9 and 9 x 12), metal plate and Film-Pack holders, metal tripods, and developing tongs, including the 'La Pince Idéale' patented by a certain Vincent Jousset in 1895. He primarily produced for resellers and left a significant portion of his production anonymous.
In 1926, his son André began working with him. Around 1933, the company's headquarters moved to 93 Rue de Gentilly, but production remained at 7 Rue Broca.

After World War II, the company was revived at 93 Rue de Gentilly under the name "Anciens Établissements Jousset, Société Industrielle de Photographie et d’Optique." Gustave Jousset seems to have passed the company on to his children, particularly his second son André.

The Kinax brand was registered on October 29, 1945. The new company filed four patents between 1945 and 1950 related to their flagship camera, the Kinax.

The 1945 patent was filed under the name of Anciens Établissements Jousset, the 1948 patent under the name of Société Industrielle de Photographie et d’Optique (IPO), and the 1949 and 1950 patents were filed under the name of Société Kinax S.A.