1900's to 1920's unsigned irridescent glass vase swirls 9"tall

I acquired this iridescent art glass vase at an estate sale. (one where the people have some knowledge of antiques.) Was told the vase was 1900 to 1920's. They did not know the maker.
The vase is a purple color with gold with lavender pink? It also looks like it has some blue, the colors change depending on how you move it.It has swirls of purple and grey.
Would like to know the maker, is it Art Deco or Art Nouveau?
I glass, especially iridescent art glass. I think it's beautiful, I love the lines.