There are NO seam lines. The fitter rim measures 5 7/8 inches across the widest point and is the type that is held in place with 3 screws. This is old but I do not know the maker or its exact age. No chips, cracks or other issues.
I believe this was made by Kayline. For this reason, and the fact that many of my items are 50+ years old, my items show ware and other issues from age and use.
They are not NEW or unused unless specified to be so. Look very carefully at the pictures. I also cannot verify that any given item did or did not come from a Smoke or Pet Free home. I try very hard to package as carefully as possible all of the items I sell. However, sometimes, no matter how well an item is packaged, it ends up lost or damaged.The item "Antique Art Deco White Milk Glass Diner School House Light Cover Mushroom Bell" is in sale since Saturday, December 10, 2016. This item is in the category "Collectibles\Lamps, Lighting\Shades". The seller is "janet94" and is located in La Crosse, Wisconsin. This item can be shipped to United States.