SIGNED "VSL" OR "VS1" CLEAR CRYSTAL BOWL

Signed Crystal Three Wave Swirl Bowl

Can someone help me identify the signature on this crystal bowl? It looks like "VSL" or could be "VS 1" The bowl is very heavy clear crystal with 3 distinctive waves or swirls that start at about an 1" thick at the top then spiral down to the bottom and to the left, getting thinner as moves down to the base.
I'm including several photos that will help I hope. I've tried on my own to find out who the bowl is made by but can't. Any information would greatly be appreciated.