Found my first ring today with my AT Pro in a local park that used to have a school nearby. Showed in the high 70's, so now I know. The inside says 'Sterling Thailand". Woooshaa to you all!!
Your first silver ring is a beauty! My first was a little squished, a thin Irish friendship ring in very hard dirt at a playground. But yours looks in perfect condition, congrats! Have fun as you find more surprises! Andi