This is an authentic, vintage square ashtray from the prestigious German company Rosenthal, produced for their high-end Studio-Linie collection. It is a striking piece of Mid-Century Modern (MCM) design, likely dating from the 1960s or 1970s.
Key Features:
Manufacturer: Rosenthal, Germany (Studio-Linie)
Material: Heavy, molded lead crystal or art glass.
Color: Deep, smoky gray or dark amber color, which appears nearly black in certain lights.
Design: Features a distinct, sculptural, vertical wave or deeply ribbed texture on all four sides. This design gives the interior of the ashtray a beautiful striped reflection.
Mark: The base is authenticated with the faint, acid-etched Rosenthal crown logo (visible upon close inspection).
Dimensions: 3.25 inches (W) x 3.25 inches (D) x 2 inches (H).
Designer Note:
The unique, deeply textured style of this piece is highly characteristic of the work done for Rosenthal by famous designers like Tapio Wirkkala. Although this specific glass pattern may not have a widely published name, its aesthetic aligns perfectly with Wirkkala's acclaimed "Variation" and "Modulation" patterns, making it a high-quality, collectible piece of German design history.
Condition (IMPORTANT):
This piece is in excellent vintage condition with one notable flaw:
Chip: There is a small, minor chip on the very top rim of one of the corners (Please see photo for detail). This is a common sign of age for heavy glass but is localized and does not significantly detract from the piece's overall display quality.
Wear: Otherwise, the glass is clean with minor surface wear consistent with age, but no other major cracks or internal flaws.