Me and my neighbour desided to have a few hours out detecting one afternoon on one of my local permissions I was using my equinox 800 and my neighbour was using the Garrett at pro we started detecting and found a couple of coins between us then I got a signal of 9 and my neighbour asked if he could check it with his Garrett to see if he would dig it and he said that it was reading as iron so he wouldn't dig it I continued to dig it as I knew it wasnt iron I dug dow about 6 inches and out popped a lovely heart shaped milleflori roman seal box lid of regional importance according to my local finds liaison officer i ended the day with 6 coins and the seal box lid my neighbour ended the day with 2 coins and a load of iron