So I am still getting used to my Fisher F5 but have hit a streak of interesting stuff over the past 24hours. All 5 rings were found at schools, none are marked, and I'm relatively certain they are all junk but its neat for me as I hadn't found a single ring since I started detecting 5 years ago. I am sort of "renewing" my interest and recently upgraded from an Ace 250. Today I also hit an old farm site and came away with some junk there (pick axe head, small fireplace shovel head, glass or ceramic lid for mason jar....had a metal ring around it) but have yet to find even a wheat penny or anything other than clad. I will keep trying, but the rings, regardless of if they are actually worth anything, made my weekend interesting.