Hi Michael,

Thank you for contacting Mearto with your appraisal inquiry.

Yes, you're correct that this is a Secessionist bronze lamp, with opaque white mushroom-cap shade with crystal pendant drops. The asymmetrical marble base is a nice touch - I haven't seen that before - but the detailing on the standard is absolutely correct for lamps and other decorative furnishings made in Vienna.

The market for these lamps varies - I'm not coming up with an attribution - but related unattributed examples have sold at auction recently for $300-500. Note this will likely be less than what antiques dealers or private sellers may ask for comparable examples in an online marketplace or brick-and-mortar shop or antiques show.

Based on the photos and information provided, and subject to examination, this is:

A late vintage/near antique Viennese Secessionist bronze and marble table lamp
circa 1920s-30s
The mushroom-cap-form opaque white shade with cast bronze leaf finial, supported on a bronze reeded standard issuing radiating spokes with suspended crystal pendants, the circular beaded foot on wedge variegated red marble base. Unsigned.
34 inches overall height; base 9 inches
CONDITION: This lamp appears to be in good condition; value assumes no breaks, repairs, losses or replacements.
PROVENANCE: Acquired at auction
$ 300-500*
*represents a fair-market value for auction purposes; retail or asking price may vary.

Please let us know if you have additional items to appraise, or questions/concerns, and thank you again for using Mearto.
~ Delia