Further technical experiments followed in the 1930s and 1940s: in 1932 Barovier created the "Acciaio" series of dark gray iridescent glasses and in 1936 Barovier introduced the "Crepuscolo", "Autunno gemmato", "Marina gemmata" and "Laguna gemmata" models. Their coloring was achieved by the inclusion of foreign materials such as iron wool and metals. At the same time, Barovier, who was now the sole owner of the company and had merged it with S.A.I.A.R., designed thick-walled vessels with appliques. These vessels were awarded a Grand Prix at the international exhibition in Paris in 1937. In contrast to many other Muranese glasses, these vessels, due to their stable nature, were not only intended for decoration, but for use. This is similar to the "Rostrato" glass, from which Ercole Barovier created particularly large objects, for example, a bed.
During the Second World War, the production of the company stagnated due to new partners around 1938 and 1939 and the company was renamed to "Barovier-Toso & C.". After the war, Ercole Barovier devoted himself to the more traditional techniques of glass blowing. At the first biennial, he presented the "Murrino" series, whose decorations are based on small, uniform glass squares. The bestsellers, however, were the vases, bowls, fish and birds figurines. Their form is structured by thick ribs that enclose spiral gold bands and bear the title "Cordonato oro".
From the 1950s on, Ercole Barovier concentrated his design work on two focal points: "colorazione a caldo senza Fusione" (coloring in hot condition without melting) and exploring the possibilities of the Murrine technique. This inspired different designs such as the "Barbarici", whose corroded surfaces are reminiscent of ancient excavation pieces, and the "Millefili" that have a delicate stripe decor, which gives the simple, rather thin-walled vases a fragile elegance. In 1951 the tireless designer was honored with a solo exhibition at the Angelicum in Milan, and then in 1952 as "Cavaliere del Lavoro", or a "Knight of Work". Ercole Barovier remained creative until old age, testing the possibilities of the Murrine technique most of all. In 1972, two years before his death, the eighty-two-year-old launched the "Neo-Murrini" series, rounding off his fifty-year career as a glass designer. He was succeeded by his son Angelo Barovier, who was able to get leading designers like Toni Zuccheri and Matteo Thun to work together.
