Design style influenced by Cubism (3,4)
I believe the answer is:
art deco
(Other definitions for art deco that I've seen before include "Style popular in the 1920s and '30s" , "Geometric style of ornamentation" , "Architecture and design movement of the 1930s" , "1920s and 1930s style of ornamentation" , "style of interior design" .)