I have three. First one from Atlantic Beach in Delaware from a site of a shipwreck known to have been carrying gold. Hurricane Sandy threw it up on the beach and it was at the high tide mark. That was 2013, in January no less. It was on TOP OF THE SAND! The machine saw it at the same moment I spied it. I thought it was one of those little milk jug tops and kicked it. It didn't kick well or far!
Second one was in 2016 at a NJ beach, a Mexican peso thingie, I forget the exact denomination I think 2.5 pesos, but ugly as all get out. 1945 date, a tourist probably lost it, it looks almost new.
Third one at a Maryland Park Beach, I was with two other guys, we were digging together. I scooped up from dry sand what I thought was a kids token as we find them there, I didn't have my glasses on so turned to my buddy and asked if this was one of those kids tokens, I was looking at the eagle on the reverse of a $5 US gold coin. It must have come out of one of those coin holder pressure fit necklaces, as you can see evidence of very minor "crimping" on the edges. He had a cow. At which point I retrieved my glasses and I had a cow. It was on the dry sand towel line.
I dig CW and colonial sites and have found silvers there, no gold. Maybe this year...or next...