I just saw this pic on a local Facebook group, someone asking what the symbol was. I had a sense of deja vu that I had seen someone else asking about the same symbol on the Dope not too long ago! I don’t recall if we ever got the answer, tho.
If you google for images of castle signet rings, you’ll come up with quite a few similar images. This one does appear to be stylized in a “W” which would most likely represent the place name rather than the family name.