I got this “lucky Buddha coin” from some dude on Listia, it’s kind of cool, but such a dark patina that it’s hard to see. I don’t think much luck is getting through.
Teresa had some red goop “jewelry cleaner”, but as you see, it had no effect. Maybe it doesn’t work on brass. I have an ultrasonic cleaner in the garage but it’s too cold to fool around out there this time of night. So stay tuned.