Monumental "crepusculo" Vase By Ercole Barovier Late 1930s-early 1940s

After developing a new heat coloring process without fusion while he was artistic director and designer for the Vetreria Artistica Barovier & Co, Ercole Barovier (1889-1974) presented in 1936 at the 20th Venice Biennale and at the Brussels Universal Exhibition new collections in its glass production, including the one called "Crepusculo". The technical innovation here consists of inserting iron wool ashes between two layers of incandescent vitreous mass.
Bibliography: "Glass and crystal" https://leverreetlecristal.wordpress.com/2014/04/16
The aesthetic effect produced is strong: the dark, almost black filaments, trapped in the transparent vitreous mass, draw an irregular fantastical landscape .
This vase combines this singular aesthetic with lines that are both classic and art deco with its shape adorned with big applied tears on the corners, and this in a rare size.
The transparency of the tears and the circular base provides additional contrast.
The combination of technique and size produce a very heavy piece (c. 10 kg). This explains the slight asymmetry observed, the collar having sunk a little under the weight in the achievement of this true technical feat which several pontil marks bear testimony of. (see pictures).
Residue on one of the tears - original (see pictures)
Hand-delivered - possibility of delivery at Montpellier déballage marchand.