This is a beautiful and highly documented Sheldon Swirl Kerosene Lamp. The lamp features a striking Blue Opalescent Reverse Swirl font mounted on a colorless leaf-patterned glass base. The hardware includes a No. 1 Taplin-Brown collar and is fitted with a period-correct No. 1 Plume & Atwood "Banner" slip burner. It is topped with a colorless chimney featuring a decorative scalloped top rim. Provenance & Historical Importance: This piece carries elite provenance, having been part of the personal collection of Catherine Thuro, the renowned author of the definitive guides on oil lamps. It also belonged to the noted collection of Carol and the late Dale Meyer of Lexington, VA. The lamp and chimney both retain their original "Thuro Collection" inventory stickers. Literature Reference This specific pattern is documented in the primary references for the hobby: Thuro, Catherine M. F. – Oil Lamps I: The Kerosene Era in North America, page 287 (left). Thuro, Catherine M. F. – Oil Lamps II: Glass Kerosene Lamps, page 105 (left). Item Details Material: Blue Opalescent Glass (font), Colorless Pressed Glass (base), Brass (burner/collar) Origin: United States Age: Circa 1890–1905 (Fourth quarter 19th/early 20th century) Style: Victorian / Art Nouveau Burner: No. 1 Plume & Atwood "Banner" slip burner Collar: No. 1 Taplin-Brown collar with patent information Item dimensions: 9" tall (15.5" with chimney) × 4" diameter Weight of item: 1 lb 1.4 oz with chimney