Poul Warmind Ring

Hello…i bought a vintage ring by Norwegian jeweler Poul Warmind. It is marked 63 inside. I know that he made limited editions of things but does anyone know more about this specific ring? How many were made? Is it onyx or enamel or ebony? I have seen it described as all of the above in other people’s listings on ebay etc. And any idea of value of this piece? Thanks so much for any assistance.