In the Hôtel du Collectionneur, Jacques-Émile Ruhlmann, nicknamed "the Pope of Art Deco", developed the full extent of his expertise as an architect and designer. A publication of the time gives a very precise list of the collaborators in the design: Bourquin created the gilded panelling; the sculptor Charles Hairon, the carved wood; Émile Gaudissard, the carpet; François-Émile Decorchemont, Frédéric Kiefer, Eve Le Bourgeois, the objects in the showcases; Joseph Bernard, the sculptures on the lady's desk and on the fireplace; François Pompon, his famous Bear
Jacques-Émile Ruhlmann designed one of his masterpieces of cabinet making, the very graceful Bureau de dame a cylindre in Macassar ebony and ivory denticules. The architecture of the
The architecture of the pavilion was entrusted to his friend Pierre Patout and the exterior sculpture Hommage à Jean Goujon was created by Alfred Janniot. Following the Paris exhibition, Jacques-Émile Ruhlmann was called to New York in 1926, Tokyo in 1928, Barcelona and Porto in 1929.