Celtic Knotwork Design Vintage Sterling Silver .925 Urn/ Poison Ring

Celtic Knotwork Design Vintage Sterling Silver .925 Urn/ Poison Ring

Antique Sterling Silver Ring
Makers Mark and Symbols engraved, but the only thing I can make out is .925 Sterling Silver.
This ring clasps closed.
Upon googling it, I found that is also known as a Urn Ring.
Size: 8
Literally the most unique and stunning ring!!