Possible Clues:

• Style employing frames of amber and tinged with green?
• 1920s-'30s design style
• Do trace (anag) — style of the 1920s and 1930s
• Style sweetheart decorated on the inside
• Style of the 1920s and '30s
• Geometric style, regularly tidier, bowed out
• Business upholding free trade, nineteen thirty's style
• Hoover Dam's style
• When training, redcoat makes movement
• Decorative style of the 1920s and 1930s