Gorgeous heavy crystal or glass crown bowl vase signed by artist

Gorgeous heavy crystal or glass crown bowl vase signed by artist . I can not read the artist's signature . I was told it was Orrefors crystal years ago but I could never read the signature nor could I find anywhere that said Orrefors crystal every used medallions on their pieces , this piece has a tiny metal medallion applied to the outside of the piece looks like a church on the medallion to me see 2nd and 3rd pics above. ... no matter who made it is gorgeous and when I plink it it sounds like crystal to me see video with volume on to hear the plink. Whether Glass or crystal it will make any dining table that more elegant or foyer . I think I used it maybe a handful of times through the years . I love displaying tulips in them , when I grew tulips , I loved the way the blooms drooped over the edges in that crown v shape. Voles ate my tulips so I do not get as many tulips that it would take to fill this beautiful piece . Soda can and ruler in pic to help with size visualization ~4.5" tall diameter ~ 6". Questions are always welcome.