Both form, shape, base and style of cut are similiar to Kny identified work. This vase is featured on the opening page for the "British National Glass Fair", just google. This beautiful vase is in excellent condition. I spun it around many times.
I counted only 7 tiny scratches, NO WEAR, no stains. This baby looks showroom new other than the tiny scratches. One of the scratches in my count is a tiny line on them, that line only measures 1' long and is not continous. I see three air bubbles, and one location where there is a dimple from dust from the firing, deep in the base. Vase is acid ethed Stuart, Made in England.
This vase measures 9 1/2 tall. In the bottom photo you can see the mark in the 12 o'clock position. If you have questions ASK, ASK, ASK!
Please revisit MemOnMain again or Memories On Main Street dot com. The item "Stuart 1930's Art Deco Signed Large Cut Crystal Glass Footed Vase Ludwig Kny" is in sale since Sunday, July 1, 2018. This item is in the category "Pottery & Glass\Glass\Art Glass\British\Other British Art Glass".
The seller is "memonmain" and is located in Marlborough, Massachusetts. This item can be shipped worldwide.