Antique Iridescent carnival glass vase with lattice pattern.

This beautiful antique Dugan carnival vase has a special iridescent that radiates pale rainbow colors. The design is Lattice. There appears to be surface cracks or scratches INSIDE at the very base you can see from the bottom. They do not go all the way through the glass. This is why I think it is just surface. See photographs provided. No other cracks, no chips or repairs. 10.5” tall.