HUGE Vintage Sterling Silver Ring Women's Faces MUSES?

This is such a unique ring. I have had it for many years and it always drew people's attention. The ring depicts three women's faces, very nicely done with a wonderful sculptural quality. The three faces always made me think of the three Muses from Greek mythology. Is that who they are? This ring is quite big (its top, that is) being 1 7/8" in length. I don't know the actual ring size. I wore it on my widest (middle ) finger and it was still too big but I didn't care. I have small hands and my fingers are quite narrow (about size 4 or 4 1/2) so perhaps you can use it as a guide.
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