sentences:  In the 1920s, he introduced his celebrated skyscraper style (before turning to metal furnishings in the 1930s).Frankl opened Frankl Galleries on 48th Street, calling his company Skyscraper Furniture, which became an epicenter of American modernism, including modern textiles and wallpapers imported from Europe.His solo art shows included New York City's Knoedler Gallery in 1931 and Los Angeles's Stendahl Gallery in 1944.