Tulip Ceiling retail Light Dome

This domed ceiling light dome has a textured cream and black surface with four tulip motifs retail formed of smooth clear glass. The center has concentric rings of bumps. The rim has a clear ribbon of pattern. There is a hole in the center for the mounting hardware.

There is a flaw on the inside, please see last photo. I think it is from the mold when it was made. It does not extend to the outside surface, I have checked it very carefully.

Dimensions: 12" diameter, 4 3/4" depth.