Unknown Glass Vase

Belonged to my grandmother, my mother and now me. Have been trying for 3 years to find out what it is. There are no markings. Emailed with someone in the U.K. and they gave me these options:(a) almost certainly Bohemian;(b) made around 1900 or slightly after;(c) possibly made by the glassworks of Wilhelm Kralik.

Someone else told me they saw one in the Butler Brothers Catalog but I have not been able to get my hands on one.

I am just so curious about it because it is so strange looking.