This was on a Aladdin oil lamp the I junked out. Top is pretty smooth while the bottom is extremely rough. Fits a 10 inch spider. All shades are double boxed.
The item "Old Vintage Aladdin Lamp Glass Light Shade Ceiling Light Table Fixture Frosted" is in sale since Wednesday, May 31, 2017. This item is in the category "Collectibles\Lamps, Lighting\Shades". The seller is "over30" and is located in Owosso, Michigan. This item can be shipped worldwide.