This is an exceptional, highly collectible example of Early American Pressed Glass (EAPG) manufacturing from the late Victorian era. Produced by Riverside Glass Works (Wellsburg, West Virginia) circa 1894, this standalone kerosene stand lamp features factory Pattern No. 423, colloquially and formally known to advanced collectors as "Empress".

An investment-grade survivor, this piece showcases remarkably vibrant, original factory fire-gilded gold cold paint—completely untouched, unscrubbed, and in true as-found collector condition.

This specific lamp is the harder-to-find design variant featuring an intricate intaglio design molded directly into the underside of the foot. When viewed from above through the heavy flint-quality glass, the three elegant Victorian women's profile portraits, delicate bowknots, and trailing floral garlands showcase a remarkable, deep three-dimensional depth.

Because the factory fire-gilded gold cold paint decoration was applied exclusively to the reverse recessed side, it has been beautifully shielded from over-handling and harsh cleaning for over 130 years. The lower edge of the domed foot is finished with a striking, robust row of molded thumbprints (or "bullseye" lenses).

The clear glass font features clean vertical optique paneling. The collar area is structurally integrated with an embossed glass rim along the lower section of the collar reading "RIVERSIDE CLINCH"—denoting Riverside's famous patented interlocking collar system designed to eliminate plaster degradation and leaking. The lamp comes equipped with a period-correct, fully operational brass Eagle burner and a clear glass chimney finished with a traditional beaded top rim.

Note to EAPG Collectors: We currently have a companion Riverside "Empress" under-base intaglio variant listed separately (the shorter 10.75" version). We are happy to combine shipping if you wish to add both sizes of this beautifully preserved design line to your collection.

Origin & Age

• Manufacturer: Riverside Glass Works (Wellsburg, WV)

• Pattern Name: No. 423 "Empress" (Intaglio Base Variant)

• Country of Origin: United States

• Circa Date: 1894 (Late Victorian Era)

Material

• Body: Heavy Lead-Free Flint Glass / Clear Pressed Glass

• Hardware: Stamped and Spun Brass

• Decoration: Original Factory Gold Gilt Cold Paint Application (Underside Base)

Dimensions

• Height to Top of Burner: 11.75 inches

• Base Diameter: Approx. 6.3 inches

Condition Report

• Glass Structure: Excellent antique condition. Clear, bright glass clarity with no cloudiness, hazy film, or water staining inside the font. There are no structural cracks along the delicate pattern edges, the stem, or the thumbprint base rim. Normal, expected minor factory mold lines.

• Gold Gilt Paint: Outstanding survival state for a late 19th-century cold-painted finish. The reverse-applied gold within the intaglio cameos and the trailing floral swags remains incredibly vivid, bright, and largely complete due to being protected on the underside. It has not been chemically cleaned, altered, or artificially touched up.

• Hardware: The brass Riverside Clinch collar is seated tightly to the glass font with no wobbling. The Eagle burner threads smoothly, and the advancement mechanism is operational. Includes a vintage cloth wick and an undamaged beaded-top clear glass chimney.

Reference

• Book: Oil Lamps: The Kerosene Era in North America

• Author: Catherine M. V. Thuro

• Page Number: Page 243 (Features the Riverside No. 423 "Empress" pattern variants, detailing the Victorian cameo portraits and the hallmark embossed Clinch collar system).

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Item Description and Condition Disclaimer

We take great care in researching, identifying, and describing each antique item to the best of our ability, drawing on available resources and hands-on examination. However, as dedicated enthusiasts rather than professional appraisers or certified experts, we cannot offer guarantees on authenticity, age, origin, or precise valuation. We strongly recommend that buyers perform their own due diligence, including consulting reference materials or experts, and thoroughly examine the accompanying photographs. These images are an essential component of our listing and depict the item's actual condition, including any visible flaws, wear, or imperfections consistent with its antique nature. It is the buyer's responsibility to inspect each lot and form their own assessment on condition, description and authenticity before purchasing. All items have signs of wear commensurate with age and usage. The lack of statement regarding condition does not imply that the item is in perfect condition or free from any and all defects. If you have any questions regarding the condition of the items, please ask and we will be more than happy to answer and/or provide additional photos as requested.

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