Description:
This is a matched pair of tall, heavy glass table lamps with brass-colored metal mounts. Each lamp features a white glass body with continuous spiral copper-colored stripes, extending from the base to the rounded “globe” section below the socket. The glass has a subtle sparkle effect within the copper stripes, suggesting the inclusion of aventurine (a copper-flecked glass technique). The brass-toned fittings include decorative beaded collars, perforated chimney-like midsections, and a finial mount. The bases are non-magnetic metal, consistent with brass or brass-plated alloy.

Dimensions:

• Height: ~21 inches to socket (not including finial)
• Top globe circumference: ~19 inches
• Column circumference: ~8 inches
• Base circumference: ~19 inches
• Weight: ~5.5 lbs each

Condition:
Overall good condition. The glass shows no chips or cracks. Metal fittings have some surface wear and patina appropriate to age. Electrical cords appear original, with older style non-polarized plugs. Both lamps are functional but should be professionally rewired for safety if intended for daily use.

Likely Origin & Attribution:
The spiral aventurine glass design is strongly associated with mid-20th-century Murano glass production in Venice, Italy. The style is particularly reminiscent of pieces attributed to Dino Martens (1894–1970), who was active in Murano from 1939–1963 and known for bold, colorful designs with metallic inclusions. However, similar designs were also produced by other Murano glassmakers and even by European and American factories imitating the style in the 1950s–1960s.
Without a maker’s mark, label, or documented provenance, authentication as Dino Martens–designed glass cannot be guaranteed. The quality of the aventurine and the weight of the glass suggest Murano origin is plausible.

Historical Context:
Murano glass has been produced for centuries in Venice, with the mid-20th century seeing a creative boom led by designers like Martens, Barovier, Seguso, and others. Aventurine glass, incorporating flecks of copper suspended in molten glass, is a hallmark of Venetian craftsmanship dating back to the 17th century. In the postwar era, many Murano designs were adapted into lighting fixtures for export to the U.S.

Value Estimate:
If definitively attributed to Dino Martens, similar lamps (pair) could command $800–$1,500 USD in the current retail/auction market, depending on condition and provenance. Without authentication, but as quality Murano-style aventurine lamps, the current fair market value is more conservatively in the range of $300–$600 USD for the pair. The value may be higher for private retail sales, particularly in markets with strong mid-century and Murano demand.

Recommendations:

• If you wish to pursue authentication, consult a Murano glass specialist or auction house (e.g., Wright, Rago/Wright/LAMA, Bonhams, or Skinner).
• Preserve the original wiring if authenticity is a priority, but use caution when operating due to age-related safety concerns.
• Maintain in a stable environment away from direct sunlight to prevent fading of metallic inclusions.

Conclusion:
This is a striking and well-preserved pair of mid-century Murano-style aventurine glass lamps. While an exact Dino Martens attribution cannot be confirmed without further expert review, the craftsmanship and materials are consistent with mid-20th-century Venetian glass production and represent a desirable collectible in the vintage lighting market.