Aladdin Mantle Lamp Company Old display model, minor patina marks & scuffs on brass Made of solid brass material – Unlacquered brass will patina more over time Fits all chimneys with 1-1/4\” OD top opening Increases light output by 10% to 20% Product Description Specs Solid Brass Light Booster Model N108B made by the Aladdin Mantle Lamp Company. Fits all chimneys with 1-1/4\” OD top opening. Discontinued Item. Product Height Diameter Model # Aladdin Brass Light Booster ~ N108B 3-3/4\” 2\” N108B For California Residents: WARNING: Cancer & Reproductive Harm – www.P65Warnings.ca.gov WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood