Collectible Tiffany Style Slag Glass Lamp. There is a crack in glass pane. The item “Collectible Tiffany Style Slag Glass Lamp” is in sale since Tuesday, July 14, 2020. This item is in the category “Collectibles\Lamps, Lighting\Shades”. The seller is “ksw1geo2″ and is located in Saint Augustine, Florida. This item can be shipped to United States.