Twisted Clear Glass Vase Sweden"Orrofor,XX Century

Hi
Everyone.
I found this twisted clear vase yesterday night at Goodwill 50% off sale, i see this vase the day before, i never carefully look underneath, but yesterday i realize i was so lucky that no one seing this etching mark from Orrofor sweden, well well, that's the second i add to my glass collection.
Clear glass, twisted form, don't see any artist code letter or serial number like the previous found maybe 2 month ago(also at goodwill), only "orrofor"etching found at the base(picture #4).
Very heavy and beautiful
This vase stand 7.50 inch tall, on a 2 inch base, 4.50 inch at the top.

Thanks for Viewing.
Alan