Underwriters Laboratories Vintage MCM Slag Glass pendant lighting

Underwriters Labratories MCM Green Slag Glass Tulip Pendant Lighting Vintage. This light is vintage, pre-owned. Needs some cleaning up and screws that hold down the glass petals may need to be replaced or oiled. I was unable to tighten the screws. I have not tested to see if it works. This was not my fixture. Sold as is. Measurements: 12 inches tall 8.5 inches wide hands about 20 inches