Vintage Tall Blue Glass Vase With Ruffled Top

Vase is in overall good condition. I did not find any chips or cracks. There is a spot with a mild scuff and and area at the bottom where there are some blacks spots that almost look like a marker. I tried removing it, but I think it’s on the inside of the glass. Please see photos. Vase measures approximately 19.5” tall, 5.25” in diameter at the bottom, and 4.5” at the top.