Final answer:
Created by Jean Dunand in 1925, the interior showcased the Art Deco/Art Moderne style, which is recognized by its bold geometric forms and streamlining as a reflection of economic austerity.
Step-by-step explanation:
The interior created in 1925 that was one of the first design projects to showcase the style of the new movement that became known as Art Deco/Art Moderne was designed by Jean Dunand. Art Deco emerged in the 1920s and is characterized by its combination of traditional craft motifs with Machine-Age imagery and materials, bold geometric forms, and rich colors. On the other hand, Streamline Moderne, also known as Art Moderne, appeared during the 1930s as both a reaction to Art Deco and a reflection of austere economic times, noted for its aerodynamic curves and absence of unnecessary ornamentation, favoring long horizontal lines and nautical elements.