Here is a pair of old ART DECO slip shades in nice condition. There are some small chips/blemishes where they slip into the fixture and one shade has what appears to be a small 1/4” scratch or hairline crack that can only be seen when you tilt the shade up against light. See pic. This hairline is located at the top of the shade where it fits into the fixture as well.

It does not negatively impact appearance whatsoever.

These are two very nice original shades.