Design style popular in the 1920s and 1930s (3,4)

I believe the answer is:

art deco

(Other definitions for art deco that I've seen before include "modern style" , "Do trace (anag) - style of the 1920s and 1930s" , "1920s and 1930s ornamental style" , "Geometric style of ornamentation" , "pre-war style" .)

I've seen this clue in The Telegraph.

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