The beautiful vintage hand cut lead crystal vase may be by Ofnah of Poland. The vase has deep cuts in a window pattern as well as vertical wedge cuts. It has a saw tooth rim.The vase is 6 inches tall. The base is 2 inches in diameter and the top is 3.5 inches in diameter. The crystal is 2/8th inch thick. In any case, it is a beautiful vase. The vase is in excellent condition with no issues.
I will be happy to supply additional photos.