Designed by Ercole Barovier in 1964, the Efeso series is among the most celebrated achievements of post-war Murano glass. First exhibited at the Venice Biennale and later published in Domus, it showcases Barovier's pioneering colorazione a caldo senza fusione ("hot colouring without fusion") technique. The luminous blue glass, animated by delicate internal inclusions, creates remarkable depth and brilliance, making each vase a unique expression of Murano craftsmanship.