Vintage 18k Solid White Gold Spinner Ring Sz 12

Vintage 18k Solid White Gold Black Design Spinner Ring Sz 12. It was my brother’s in law, really scratched up and the mark inside is completely faded, use to have an inscription and makers name. My sister can’t remember the name. I knew was real gold, but did the acid test and waited one whole minute. You can see photos with time on it. Also I did the cut test, which again proved positive for 18k gold. Please look at all photos for details