I found my first ring today, and I think it's silver. Rang up at 77 on my AT Pro. It was only an inch or two under the sand at the beach and did not need any cleaning. My wife says it looks like a Native American design. Inside it has what are either SU or 5U and also 925.
92.5 percent silver good job. Here in Michigan all clad is so dark I use a rock tumbler to clean them up ..Silver though like all my silver coins come out like they were dropped a day ago
92.5 % silver It's possible that the SU stands for Silver Unlimited which was an internet based shopping site. Many countries use SU as a code for sterling silver