1930s Evening Gown Circa In the 1930s a curious thing occurred. In the 30s, the line between evening wear, and nightgowns dressing gowns became vanishingly narrow. The same shapes, the same structures and the same materials were very late 1920s 1930s rayon satin sleeveless evening dress with mock After Number Nine Vintage 1930s Floral Satin Gathered Bust Evening Gown VintageVirtuosa making a 1934 evening gown