Vintage Fenton Cathead Blue Opalescent Hobnail Slipper is uv reactive, it glows green under 365nm. There are no chips, cracks, or repairs. There is some discoloration on the hobnail around the head, I have wiped it down with alcohol, and it didn't remove it. I am unsure if it will come off using other cleaning methods. The slipper measures 5.25" length, 1.5" wide, and 3" tall