This is an unsigned Art Deco molded opalescent/frosted glass vase, c. 1925–1935, produced in Continental Europe (most likely Czechoslovakia/Bohemia or a French commercial workshop in the style of Verlys, Pierre d’Avesn, Etling/Sabino, or direct Lalique imitators). •  Bulbous body with short tapered neck and flat rim; •  All-over high-relief pattern of vertical overlapping stylized leaves/fronds (fern/palm-like); •  Thick heavy construction (1,408 g/28 cm is typical for these substantial pieces); •  Frosted white opalescent glass with blue patina/staining rubbed into the recesses for dramatic contrast. These were popular, affordable alternatives to Lalique during the Art Deco boom. Czechoslovakian factories (e.g., Inwald, Barolac, or anonymous mold-makers) mass-produced near-identical designs using the same pressed-molding technique and blue staining. French versions (Verlys, d’Avesn, etc.) exist but are usually signed in relief; many generic examples remain unmarked. The pattern strongly echoes Lalique’s “Milan” or fern motifs but with softer edges and less crisp definition. Possible attribution to Josef Inwald/Barolac (Czechoslovakia, 1930s). Barolac was Inwald’s famous frosted/satin glass line: thick pressed-molded opalescent pieces with high-relief stylized foliage patterns, often finished with blue or ice-blue patina rubbed into the recesses — exactly the technique, colour, weight (heavy 1.4 kg construction), and period of this vase. Many Barolac vases are unsigned (or only faintly marked “Czechoslovakia” or a model number in the base) and commercial/export examples frequently have no visible mark at all — which matches the base perfectly. Closest patterns from Inwald/Barolac: •  Birch Leaves (and similar foliage/leaf-garland series): vertical overlapping stylized leaves/fronds with catkins or swirling detail — the closest documented match to this all-over vertical fern-like motif. •  Leaf garlands, palm fronds, and other foliage reliefs: high-relief, bulbous forms, blue-green or ice-blue washes. •  They also produced Lalique-inspired designs (this vase’s pattern is similar to René Lalique’s “Milan” fern vase from 1929 — Inwald and other Czech factories made affordable pressed-glass versions of these popular motifs). This is a lovely, authentic 1930s piece with real period character — whether exactly Inwald/Barolac or a close Bohemian contemporary, it’s a strong example of the style that made Czech glass famous worldwide. Condition is excellent: no chips, cracks, or repairs visible; even patina and good colour depth. Please examine the photos carefully.