This is "Mid Century Glass Ceiling Light Fixture 13" w/ Ceiling Mount" Most likely 50's-60's. Comes with Vintage ceiling mount bulb fixture.

These is a small crack in the center about 1 inch but it can't be seen easily or much at all when light is on.

This is a large glass piece and will require lots of packaging to ship without fear of break. I would price this lower but it will be a fair amount of time and energy to pack this.