The Wolfard Oil Lamp has earned an international reputation for excellence in design and function. It has been included in the prestigious Whitney Museum of American Art exhibition "High Styles: Twentieth Century American Design," a review of outstanding examples of furniture, industrial design, and decorative objects. The Wolfard Oil Lamp is hand-blown from borosilicate glass (known for its strength and clarity) using an exclusive "in-flame" glassblowing technique which requires higher temperatures than other art glass methods. This, in turn, requires a higher degree of skill by the glassblower to form the lamp while the glass remains workable. Whether in your home or in a world class museum, Wolfard Lamps bring style and elegance to any room. All are beautifully hand-crafted and designed to be treasured for generations. They come in four sizes: 6-inches, 9-inches, 12-inches, and 15-inches in height..